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Alsaqr A, Alhumaid S, Alanazi M, Abusharha A. Prescribing patterns for hyperopia: an insight of the optometrist perspective and practice. BMC Ophthalmol 2024; 24:226. [PMID: 38807053 PMCID: PMC11134738 DOI: 10.1186/s12886-024-03496-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 05/24/2024] [Indexed: 05/30/2024] Open
Abstract
BACKGROUND To investigate the current prescribing patterns for correcting hyperopia among optometrists in clinical practice in Saudi Arabia and compare those to current international guidelines. And explore the factors that influence practitioners' prescribing decision. METHOD This cross-sectional study employed 30 items online survey that encompass demographic data, current practice and cycloplegia use, numerical response to indicate the minimum level of hyperopia at which optometrists would consider prescribing spectacles to non-strabismic children and determine the diopter value required for prescribing correction for hyperopia if present with other factors. RESULT A total of 104 optometrists responded to the survey (52 females and 52 males). They recruited from 35 cities across Saudi Arabia. Out of total, 44% of them considered cycloplegic refraction essential under 12 years and 56% of them extended the range to 18 years. Large variation were found between the optometrists' responses and current guideline recommendations. Several factors influenced the decision-making of the practicing optometrist including signs and symptoms, bilateral hyperopia, average dioptric value, reading difficulty, and accommodative function. CONCLUSION There are some matches between the international guidelines and the practice patterns that followed by optometrists in Saudi Arabia, however, the optometrists did not report that they are following them purposefully. These findings highlight the need to improve optometrists' practice about spectacle prescription in pediatric population.
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Affiliation(s)
- Ali Alsaqr
- Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, 11433, Riyadh, Saudi Arabia.
| | - Saleh Alhumaid
- Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, 11433, Riyadh, Saudi Arabia
| | - Muteb Alanazi
- Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, 11433, Riyadh, Saudi Arabia
| | - Ali Abusharha
- Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, 11433, Riyadh, Saudi Arabia
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Ajeel NA, Diab BS. Dental caries as a health risk for visual acuity in relation to salivary transforming growth factor beta-1 among students aged 8-10 years: A cross-sectional study. J Int Soc Prev Community Dent 2024; 14:144-151. [PMID: 38827353 PMCID: PMC11141898 DOI: 10.4103/jispcd.jispcd_205_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/17/2024] [Accepted: 03/01/2024] [Indexed: 06/04/2024] Open
Abstract
Background Dental caries and an impairment in visual acuity (VA) may both be caused by a variety of risk factors. Various conditions of the eye can appear as a consequence of overall inflammation and active dental caries. Aim The present study aims to assess dental caries and salivary status by measuring the transforming growth factor beta-1 (TGF-β1) and flow rate between visually impaired students compared with students with normal vision. Materials and Methods Research was performed employing a cross-sectional comparative study design conducted among representative 653 students aged 8-10 years at primary schools in Al-Diwaniyah governorate using the Snellen E chart for measuring VA status. Partitioning the students according to the degree of VA into normal students with normal VA of 6/9 or better and students with visual impairment of 6/12 or worse was done. Sub-sample of 180 students was recruited randomly from both groups, age and gender-matched participants for salivary analysis, and dental caries assessment measured by decay, missed, filled index, according to the World Health Organization in 2013. Results Out of 653 students, only 70 students suffer from a decrease in VA. Dental caries was more prevalent in those who had a decrease in VA compared with normal groups. For primary teeth decay, missed, filled teeth index (DMFT/dmft), the result was not significant but highly significant for DMFT/dmft. A significant decrease in salivary flow rate and increased salivary TGF-β1 level among visually impaired students was found. Conclusions According to the current research, the study population that has impaired VA, dental health status has greatly deteriorated.
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Affiliation(s)
- Noor Adil Ajeel
- Department of Preventive Dentistry, College of Dentistry, University of Baghdad, Baghdad, Baghdad Governorate, Iraq
| | - Ban Sahib Diab
- Department of Preventive Dentistry, College of Dentistry, University of Baghdad, Baghdad, Baghdad Governorate, Iraq
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Hashemi H, Khabazkhoob M, Lança C, Emamian MH, Fotouhi A. Prevalence of anisometropia and its associated factors in school-age children. Strabismus 2024; 32:1-10. [PMID: 38230509 DOI: 10.1080/09273972.2023.2293883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
PURPOSE To determine the prevalence of anisometropia and the associated demographic and biometric risk factors in children. METHODS This cross-sectional study was conducted on the elementary school children of Shahroud, east of Iran, in 2015. All rural students were recruited, while multistage cluster sampling was used to select the students in urban areas. All children underwent optometric examinations including the measurement of uncorrected and corrected visual acuity, autorefraction, and subjective refraction with cycloplegia. Biometric components were measured using the Allegro Biograph. Myopia and hyperopia were defined as a spherical equivalent ≤-0.5 and ≥ +2.00 diopter, respectively. Students with a history of ocular trauma or lack of cycloplegic refraction at least in one eye were excluded from the study. RESULTS Of 6624 selected children, 5620 participated in the study. After applying the exclusion criteria, the data of 5357 students (boys: 52.8%, n = 2834) were analyzed. The mean age of the subjects was 9.2 ± 1.7 years (range: 6-12 years). The prevalence of anisometropia ≥ 1 D was 1.1% (95% CI: 0.8 to 1.4) in all children, 1.0% (95% CI: 0.7-1.3) in boys, 1.3% (95% CI: 0.8-1.7) in girls, 1.1% (95% CI: 0.8-1.4) in urban children, and 1.4% (95% CI: 0.5-2.3) in rural children. The prevalence of anisometropia was 8.8% (95% CI: 5.3-12.2) in myopic and 5.7% (95% CI: 2.8-8.5) in hyperopic children. Axial length asymmetry (OR = 40.9; 95%CI: 10.2-164.1), myopia (OR = 17.9; 95% CI: 9.4-33.9), and hyperopia (OR = 10.1; 95% CI: (5.1-19.7) were associated with anisometropia in multiple logistic regression model. More anisometropia was associated with more severe amblyopia. The odds of amblyopia (OR = 82.3: 38.2-177-3) and strabismus (OR = 17.6: 5.5-56.4) were significantly higher in anisometropic children. The prevalence of amblyopia was 21.7% in children with myopic anisometropia ≥ 3D, 66.7% in children with hyperopic anisometropia ≥ 3D, and 100% in cases with antimetropia ≥ 3D. CONCLUSION The prevalence of anisometropia was low in Iranian school children. However, a high percentage of anisometropic students had amblyopia and strabismus. Axial length was the most important biometric component associated with anisometropia.
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Affiliation(s)
- Hassan Hashemi
- Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran
| | - Mehdi Khabazkhoob
- Department of Basic Sciences, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Carla Lança
- Escola Superior de Tecnologia da Saúde de Lisboa (ESTeSL), Instituto Politécnico de Lisboa, Lisboa, Portugal
- Comprehensive Health Research Center (CHRC), Escola Nacional de Saúde Pública, Universidade Nova de Lisboa, Lisboa, Portugal
| | - Mohammad Hassan Emamian
- Ophthalmic Epidemiology Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Akbar Fotouhi
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Alkhathami A, Alqarni SAM, Aljuaid AT, Alshahrani YF, Alabdulminaim J, Al-Otaibi Y, Ibrahim ME. Prevalence and Patterns of Refractive Error Among School-Age Children in Bisha, Saudi Arabia. Cureus 2023; 15:e50530. [PMID: 38226113 PMCID: PMC10788314 DOI: 10.7759/cureus.50530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2023] [Indexed: 01/17/2024] Open
Abstract
BACKGROUND A widespread and serious eye condition is a refractive error (RE). Globally, uncorrected refractive defects affect numerous individuals, with some who are blind. Numerous studies in Saudi Arabia have been conducted to assess reflective error. However, there is a lack of knowledge regarding RE among school-age children in Bisha province, southwest Saudi Arabia. This study aimed to determine the prevalence and types of RE among school-age children in Bisha, Saudi Arabia. METHODS A cross-sectional study involved 360 schoolchildren from primary schools was carried out between December 2022 and November 2023 in Bisha. A validated questionnaire form was used to collect sociodemographic information and clinical data (history of the ocular problem, visual acuity test findings, and the refractor machine's result). RESULT A total of 360 schoolchildren aged from seven to 14 years, with a mean of 10.1 years (standard deviation (SD)=2.05). The prevalence of hyperopia was 21% in the right eye and 23% in the left eye. In addition, the prevalence of myopia was 20% in the right eye and 22.5% in the left eye. A significant association between visual acuity and myopia (p=0.001). By contrast, there was no significant correlation between hyperopia and visual acuity (p=0.412). CONCLUSION The current study summarized the prevalence of REs among school-age children in Bisha, Saudi Arabia. The study population included nearly half of those with at least some degree of RE. These results highlight the need for prompt and careful screening programs to detect and treat refractive disorders across this age range.
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Affiliation(s)
| | | | | | | | | | - Yousef Al-Otaibi
- Department of Ophthalmology, College of Medicine, University of Bisha, Bisha, SAU
| | - Mutasim E Ibrahim
- Department of Medical Education, College of Medicine, University of Bisha, Bisha, SAU
- Department of Microbiology, College of Medicine, University of Bisha, Bisha, SAU
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Barraza-Bernal MJ, Ohlendorf A, Sanz Diez P, Feng X, Yang LH, Lu MX, Wahl S, Kratzer T. Prediction of refractive error and its progression: a machine learning-based algorithm. BMJ Open Ophthalmol 2023; 8:e001298. [PMID: 37793703 PMCID: PMC10551949 DOI: 10.1136/bmjophth-2023-001298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 09/07/2023] [Indexed: 10/06/2023] Open
Abstract
OBJECTIVE Myopia is the refractive error that shows the highest prevalence for younger ages in Southeast Asia and its projection over the next decades indicates that this situation will worsen. Nowadays, several management solutions are being applied to help fight its onset and development, nonetheless, the applications of these techniques depend on a clear and reliable assessment of risk to develop myopia. METHODS AND ANALYSIS In this study, population-based data of Chinese children were used to develop a machine learning-based algorithm that enables the risk assessment of myopia's onset and development. Cross-sectional data of 12 780 kids together with longitudinal data of 226 kids containing age, gender, biometry and refractive parameters were used for the development of the models. RESULTS A combination of support vector regression and Gaussian process regression resulted in the best performing algorithm. The Pearson correlation coefficient between prediction and measured data was 0.77, whereas the bias was -0.05 D and the limits of agreement was 0.85 D (95% CI: -0.91 to 0.80D). DISCUSSION The developed algorithm uses accessible inputs to provide an estimate of refractive development and may serve as guide for the eye care professional to help determine the individual best strategy for management of myopia.
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Affiliation(s)
| | - Arne Ohlendorf
- Technology and Innovation, Carl Zeiss Vision International GmbH, Aalen, Germany
| | | | - Xiancai Feng
- Myopia Prevention and Management, Carl Zeiss Shanghai Co Ltd, Shanghai, China
| | - Li-Hua Yang
- Wuhan Center for Adolescent Poor Vision Prevention and Control, Wuhan, China
| | - Mei-Xia Lu
- Wuhan Commission of Experts for the Prevention and Control of Adolescent Poor Vision, Wuhan, China
| | | | - Timo Kratzer
- Technology and Innovation, Carl Zeiss Vision GmbH, Aalen, Germany
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Almarzouki HS, Alharbi SY, Bakhsh DA, Alayoubi SN, Taher NO, Farahat F. Prevalence of Myopia and Its Associated Risk Factors Among Children Attending a Tertiary Hospital in Saudi Arabia. Cureus 2023; 15:e37045. [PMID: 37153284 PMCID: PMC10154452 DOI: 10.7759/cureus.37045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2023] [Indexed: 04/05/2023] Open
Abstract
CLINICAL RELEVANCE This study serves as a tool for optometrists and ophthalmologists to reinforce adherence to several preventive factors, which may decrease the incidence of myopia, and avoidance of risk factors by multiple means including education during hospital visits. It also provides insight into who should be screened and tailored screening programs for children. BACKGROUND While studies assessing the prevalence of myopia in Saudi Arabia have contradicting results, only a few studies have evaluated the risk factors of myopia and the effect of using electronic devices on its occurrence. Thus, this study aimed to determine the prevalence of myopia and associated risk factors, among children attending an ophthalmology clinic in King Abdulaziz Medical City, Jeddah, Saudi Arabia. METHODS A cross-sectional study was conducted. A total of 182 patients aged < 14 years were selected using convenient sampling. Direct assessment of the refraction was performed in the clinic, and a questionnaire was completed by the child's parent. RESULTS Of 182 patients who met the inclusion criteria, 40.7% had myopia. Myopia was more common in boys (56.8%) than in girls (43.2%), with a median age of 8.7 years. Using multivariate regression analysis, only age (eight years and above) (OR=2.15, CI=1.12-4.12, P= 0.03), and family history of myopia (OR= 5.83, CI= 2.82-12.05, P= 0.001) were significant predictors of myopia in children. Other variables (e.g., sex, and use of laptops, computers, smartphones/tablets, or TV) were not statistically significant. CONCLUSIONS This study did not show a statistically significant association between using electronic devices and the onset and progression of myopia among children. Studies with a larger sample size are required to further investigate this association and assess other potential risk factors.
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Eljack I, Alshahrani Y. The Prevalence of Myopia Among Primary School Male Students in Bisha, Saudi Arabia. Cureus 2023; 15:e36792. [PMID: 37123764 PMCID: PMC10134407 DOI: 10.7759/cureus.36792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2023] [Indexed: 03/30/2023] Open
Abstract
Background Myopia (shortsightedness) is considered a major health problem globally which has increased in the last few decades. This study aims to determine the prevalence of myopia and the associated risk factors among primary school students in Bisha, Saudi Arabia. Methods This descriptive cross-sectional study included 330 male students from five boys' schools in Bisha city. Students underwent an interview questionnaire that composed of (sociodemographic data, risk factors, and ocular history). Students' vision was assessed by an optometrist through the use of a Snellen chart and the result was converted to a Diopter unit (D). Myopia was defined as the spherical equivalent (SE) of ≤ - 0.5 D. Binomial statistical test was used to get a prevalence of myopia with a confidence interval (CI) of 95%. Chi-square analytical test was used to compare myopic and non-myopic groups on multiple variables. Results were considered statistically significant at p-value ≤ 0.05. Results The mean age of 330 male students was 11.29 ± 0.97. The prevalence of myopia was (32.7%, 95% CI: 27.7-38.1%), and the mean of the SE of participants was - 0.25 ± 0.60 D. Myopia prevalence was increased with age and school grade of participants (p ≤ 0.05). Students who spent a long time (more than three hours) on near activity are at risk of developing myopia (p ≤ 0.001). having one or both parents affected by myopia was not statistically significant with the prevalence of myopia (p = 0.175). Children who spent a long time outdoors tend to have a lower risk of myopia (p ≤ 0.001). Conclusion The study showed a high prevalence of myopia among schoolchildren in Bisha city. Therefore, it is recommended to plan for future screening programs for myopia.
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Khouj G, Alharbi A, Alghamdi W, Alzahrani Y, Fallata A. Uncorrected Refractive Errors Among Children Attending Pediatric Ophthalmology Clinic at Security Forces Hospital, Makkah, Saudi Arabia. Cureus 2023; 15:e36234. [PMID: 37069875 PMCID: PMC10105575 DOI: 10.7759/cureus.36234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND Refractive errors are globally one of the most prevalent ocular disorders among pediatrics. This study aimed to determine the pattern of uncorrected refractive errors among children attending pediatric ophthalmology clinics at Security Forces Hospital, Makkah, Saudi Arabia. METHODS This was a retrospective cohort clinic-based study including the records of children attending the pediatric ophthalmology clinic at Security Forces Hospital, Makkah, Saudi Arabia, between July 2021 and July 2022 who were diagnosed with refractive errors, ages between 4 and 14 years. RESULTS A total of 114 patients were included in the study while 26 patients with other ocular disorders were excluded from the study. The mean age of children included in the study was 9.1 ± 2.9. The most prevalent refractive errors were hyperopic astigmatism (64%), followed by myopic astigmatism (28.1%), then myopia (5.3%), and hyperopia (2.6%). The overall uncorrected refractive error of this study was estimated to be 36%. No significant association was found between the factors of age and gender on the type of refractive errors (P-value > 0.05). CONCLUSION The most prevalent pattern of uncorrected refractive errors among children attending pediatric ophthalmology clinics at Security Forces Hospital, Makkah, Saudi Arabia was hyperopic astigmatism followed by myopic astigmatism. No differences were found between different age groups and between genders on the type of refractive errors. Implementation of adequate vision screening programs for school-aged children is essential to detect uncorrected refractive errors at an early age.
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Alanazi MK, Almutleb ES, Badawood YS, Kudam MA, Liu M. Perspectives and clinical practices of optometrists in Saudi Arabia concerning myopia in children. Int J Ophthalmol 2023; 16:267-273. [PMID: 36816204 PMCID: PMC9922639 DOI: 10.18240/ijo.2023.02.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 12/07/2022] [Indexed: 02/05/2023] Open
Abstract
AIM To investigate the practice patterns of optometrists in Saudi Arabia regarding myopia management. METHODS An internet-based survey was distributed to all practicing optometrists in Saudi Arabia (n=1886). The survey contained questions related to 1) demographics, 2) knowledge about myopia and its associated complications, 3) current clinical care, 4) type and frequency of myopia treatment prescribed, and 5) potential barriers limiting treatment adoption. RESULTS The completed surveys were collected from 171 optometrists (9.06% response rate, 60% male). Knowledge regarding myopia-associated complications was prevalent but somewhat inaccurate among the respondents. Cycloplegic refraction at initial visit was used by 59% of the respondents. The cover test was the most reported binocular vision test (83%), and 38% of optometrists did not perform any ocular biometrics. Two-thirds prescribed single-vision spectacles for children with myopia. Increased time spent outdoors was selected by 80% of the practitioners who prescribed myopia control treatment as the primary approach. Insufficient support and lack of clinical experience in providing myopia treatment were reported as the most important factors limiting the adoption of myopia management strategies. CONCLUSION The current optometric practices in Saudi Arabia require further investigation. Optometrists appear to be somewhat aware of myopia and the associated risks. However, most evidence-based myopia treatments are not being locally adopted, primarily because of lack of support, lack of experience, and limited availability.
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Affiliation(s)
- Muteb K. Alanazi
- Optometry Department, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia
| | - Essam S. Almutleb
- Optometry Department, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia
| | - Yousef S. Badawood
- Optometry Department, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia
| | - Mohammed A. Kudam
- Optometry Department, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia
| | - Maria Liu
- UC Berkeley School of Optometry, Berkeley 94720, California, United States
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AlThomali TA, AlQurashi M, AlGhamdi AS, Ibrahim A, AlSwailmi FK. Prevalence of refractive errors in school-going children of Taif region of Saudi Arabia. Saudi J Ophthalmol 2022; 36:70-74. [PMID: 35971495 PMCID: PMC9375459 DOI: 10.4103/sjopt.sjopt_46_21] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 02/19/2022] [Accepted: 02/20/2022] [Indexed: 11/04/2022] Open
Abstract
PURPOSE To determine the prevalence of refractive errors in the pediatric population in Taif, Saudi Arabia. METHODS This cross-sectional study included 7356 eyes of 3678 primary and secondary school children (males = 1837; females = 1841) with a mean age of 11.8 ± 2.2 years (range: 7-18) (males = 11.4 ± 2.0 [range: 8-16]; females = 12.2 ± 2.3 [range: 7-18]). All participants were selected from the school registers. The participants underwent noncycloplegic refraction to determine refractive errors. Students who refused visual acuity assessment or eye examination and were inconsistent in visual acuity assessment were excluded. RESULTS The manifest refraction spherical equivalent of the study population was 0.37 ± 1.52 D (range from - 18.4 to 8.8 D) (males = -0.32 ± 1.4 D [range - 15.88-8.8 D]; females = -0.42 ± 1.6 D [range - 18.38-8.0 D]). The overall prevalence of uncorrected refractive errors among school children in this study was 50.91%. The overall distribution of astigmatism (cylinder error of ≥0.50 D) in the current study population was found to be 50.14% (3688/7356 eyes). CONCLUSION Nearly half of the study population in this area was affected with at least one type of refractive error. The findings reveal the necessity for implementing timely and sensitive screening programs/methods to identify and correct refractive errors in this age group.
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Affiliation(s)
- Talal A. AlThomali
- Department of Ophthalmology, Medical College, Taif University, Taif, Saudi Arabia,Address for correspondence: Dr. Talal A. AlThomali, Taif University, PO Box 795, Taif 21944, Saudi Arabia. E-mail:
| | - Majed AlQurashi
- Anterior Segment Division, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
| | | | | | - Farhan K. AlSwailmi
- Department of Ophthalmology, Medical College, University of Hafr Al-Batin, Hafr Al-Batin, Saudi Arabia
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Cao H, Cao X, Cao Z, Zhang L, Han Y, Guo C. The prevalence and causes of pediatric uncorrected refractive error: Pooled data from population studies for Global Burden of Disease (GBD) sub-regions. PLoS One 2022; 17:e0268800. [PMID: 35776717 PMCID: PMC9249246 DOI: 10.1371/journal.pone.0268800] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 05/07/2022] [Indexed: 11/18/2022] Open
Abstract
Background
There are limited systematic reviews on the prevalence of uncorrected refractive errors in children. We aimed to summarize the prevalence and causes of pediatric uncorrected refractive error (URE) from studies in the Global Burden of Disease (GBD) sub-regions.
Methods
The pooled analysis used the individual participant data (ages less than 20 years old) from population-based studies around the world by regions. URE was defined as presenting VA < 6/18 and improving to ≥ 6/18 or ≥1 line on using a pinhole in either eye, with main causes of myopia, hyperopia or astigmatism. Each study provided data on any URE, myopia, hyperopia or astigmatism by age, gender, and ethnicity. Prevalence rates were directly age and gender standardized to the 2020 world population with all age groups. Estimates were calculated by study and sub-regions after pooling. Summary estimates included studies in which URE was assessed from a pinhole-corrected refraction in the better eye.
Results
The combined pooled data contained 302,513,219 patients including 8 963 URE cases individuals from 57 studies. Prevalence varied by age and GBD sub-regions and differed by gender. The age- and region-standardized prevalence of URE was 3.41 per 1000 (CI, 1.53~7.62) in Western Pacific region (12 studies), 2.26 per 1000 (CI, 0.85~6.01) in South-East Asia region (14 studies), 5.85 per 1000 (CI, 3.75~9.13) in Americans (11 studies) and 4.40 per 1000 (CI, 3.0~6.45) in Eastern Mediterranean region (13 studies). On the basis of these data, myopia was the first-leading cause in female children with 12~17 age group, with the prevalence rate 18.2 per 1000 (CI, 11.52~23.61). Astigmatism was detected in 27.2 per 1000 male children with 6~11 age group (CI: 19.12–30.68).
Conclusions
Prevalence of URE available data within these sub-regions are widely disparate. Myopia and astigmatism in young age children continue as the leading cause of URE worldwide. Providing appropriate refractive correction to those individuals whose vision can be improved is an important public health endeavor with implications for safety and quality of life.
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Affiliation(s)
- He Cao
- Department of Ophthalmology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong Province, People’s Republic of China
| | - Xiang Cao
- Emergency Department, The First Affiliated Hospital of Jiamusi University, Heilongjiang Province, People’s Republic of China
| | - Zhi Cao
- VPL Department, Mentor Graphics Technology (Shenzhen) CO. LTD., Guangdong Province, People’s Republic of China
| | - Lu Zhang
- Department of Ophthalmology, No. 4 Hospital of Xi’an City, Xi’an, Shanxi Province, People’s Republic of China
| | - Yue Han
- Nangang Branch, The Second Hospital of Heilong jiang Province, Harbin City, Heilongjiang Province, People’s Republic of China
| | - Changchun Guo
- Pingshan District People’s Hospital of Shenzhen, Shenzhen, Guangdong Province, People’s Republic of China
- * E-mail:
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Yasir ZH, Basakran FA, Alhumaid NA, Balous MA, Banaeem AS, Al-Shangiti AK, Khandekar R. Prevalence and determinants of refractive error and related ocular morbidities among Saudi adolescence population in Riyadh, Saudi Arabia. Oman J Ophthalmol 2022; 15:25-30. [PMID: 35388239 PMCID: PMC8979385 DOI: 10.4103/ojo.ojo_114_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 08/19/2021] [Accepted: 08/28/2021] [Indexed: 11/05/2022] Open
Abstract
PURPOSE The purpose of this study was to determine the magnitude and determinants of refractive error (RE) and related ocular morbidities among preparatory and secondary Saudi students in Riyadh. METHODS This study was conducted in 2017-2018 at preparatory (12-14 years) and secondary (15-18 years) schools. A "Spot Screener" was used to determine if the child passed or failed a refraction test. Fail test meant RE ≥ ± 0.50 D. Data were collected on refractive status in each eye, anisometropia, and strabismus. The type of RE was estimated and analysis was performed for an association to gender, age, and education levels. The use of spectacle while screening defined the compliance of spectacle wear. RESULTS The study sample was comprised of 708 Saudi students. There were 59.5% of boys. The prevalence of RE was 43.6% (95% confidence interval [CI]: 40.0, 47.3). The prevalence of RE in preparatory and secondary students was 44.5% and 43.2%, respectively. The proportion of myopia (≥ -0.5 D) and hyperopia (≥ +0.5 D) among students with RE was 82.2% and 17.8%, respectively. Family history of RE was positively associated to RE in students (odds ratio: 1.8 [95% CI: 1.3, 2.5]). The current screening initiative identified 45 (6.4%) new cases of RE who required spectacles. The compliance rate for using visual aid among students with RE was 74.6%. The prevalence of anisometropia and strabismus was 3.0% and 4.1%, respectively. CONCLUSIONS A high proportion of Saudi adolescence in Riyadh have RE. Periodic ophthalmic assessment and refractive services are recommended as part of school health screening initiatives.
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Affiliation(s)
- Ziaul Haq Yasir
- Department of Research, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia,Address for correspondence: Dr. Ziaul Haq Yasir, King Khaled Eye Specialist Hospital, 2775 AlUrubah Road, Umm AlHamam AlGharbi, Unit 2, Riyadh, Saudi Arabia. E-mail:
| | | | - Nora Ali Alhumaid
- Department of Research, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
| | | | | | | | - Rajiv Khandekar
- Department of Research, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
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Danemayer J, Boggs D, Delgado Ramos V, Smith E, Kular A, Bhot W, Ramos-Barajas F, Polack S, Holloway C. Estimating need and coverage for five priority assistive products: a systematic review of global population-based research. BMJ Glob Health 2022; 7:bmjgh-2021-007662. [PMID: 35101862 PMCID: PMC8804659 DOI: 10.1136/bmjgh-2021-007662] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/10/2021] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION To improve access to assistive products (APs) globally, data must be available to inform evidence-based decision-making, policy development and evaluation, and market-shaping interventions. METHODS This systematic review was undertaken to identify studies presenting population-based estimates of need and coverage for five APs (hearing aids, limb prostheses, wheelchairs, glasses and personal digital assistants) grouped by four functional domains (hearing, mobility, vision and cognition). RESULTS Data including 656 AP access indicators were extracted from 207 studies, most of which (n=199, 96%) were cross-sectional, either collecting primary (n=167) or using secondary (n=32) data. There was considerable heterogeneity in assessment approaches used and how AP indicators were reported; over half (n=110) used a combination of clinical and self-reported assessment data. Of 35 studies reporting AP use out of all people with functional difficulty in the corresponding functional domains, the proportions ranged from 4.5% to 47.0% for hearing aids, from 0.9% to 17.6% for mobility devices, and from 0.1% to 86.6% for near and distance glasses. Studies reporting AP need indicators demonstrated >60% unmet need for each of the five APs in most settings. CONCLUSION Variation in definitions of indicators of AP access have likely led to overestimates/underestimates of need and coverage, particularly, where the relationship between functioning difficulty and the need for an AP is complex. This review demonstrates high unmet need for APs globally, due in part to disparate data across this sector, and emphasises the need to standardise AP data collection and reporting strategies to provide a comparable evidence base to improve access to APs.
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Affiliation(s)
- Jamie Danemayer
- Department of Computer Science, Global Disability Innovation Hub, University College London, London, UK
| | - Dorothy Boggs
- International Centre for Evidence in Disability, London School of Hygiene and Tropical Medicine, London, UK
| | | | - Emma Smith
- Department of Psychology, Assisted Living and Learning Institute, Maynooth University, Maynooth, Ireland
| | - Ariana Kular
- Department of Health Sciences, Mental Health and Wellbeing, University of Warwick, Warwick, UK
| | - William Bhot
- Department of Computer Science, Global Disability Innovation Hub, University College London, London, UK
| | - Felipe Ramos-Barajas
- Department of Computer Science, Global Disability Innovation Hub, University College London, London, UK
| | - Sarah Polack
- International Centre for Evidence in Disability, London School of Hygiene and Tropical Medicine, London, UK
| | - Cathy Holloway
- Department of Computer Science, Global Disability Innovation Hub, University College London, London, UK
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Alsaqr AM. Barriers to Low Vision Services Among Optometrists in Saudi Arabia. Open Ophthalmol J 2021. [DOI: 10.2174/1874364102115010178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Introduction:
This study identifies the barriers and challenges to the provision of low vision services among practicing optometrists in Saudi Arabia.
Methods:
In this study, a self-administered online structured survey for practicing optometrists was used. Responses were collected to understand the number and percentage of low vision service providers, level of awareness, and barriers to the provision of low vision services.
Results:
This study included 154 (79 females and 75 males) practicing optometrists. They were from the five regions of Saudi Arabia (23 cities). The age of the practitioners ranged from 22 to 54 years. They had Bachelor’s, Master’s, and Doctor of Philosophy degrees. Forty-four participants (30%) provided low vision services. The major barriers reported were lack of training (87%), lack of awareness about low vision services (76%), lack of availability of low vision devices (70%), lack of motivation (65%), low vision services being time-consuming (55%), being busy in providing general optometry (65%), and lack of financial sources (31%).
Conclusion:
Building an efficient model for low vision rehabilitation in Saudi Arabia is needed. Moreover, encouraging more optometrists to be involved in low vision rehabilitation is necessary. There is also a need for more low vision education, national health coverage of patients with low vision, and better collaboration between low vision service providers.
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Alomair R, Alghnam SA, Alnasser BN, Almuhawas HA, Alhoshan SA, Altamimi BS, Alshaye RM, Almuayli MT, Alokiliy MK, Alfawaz WJ, Alghamdi SK. The prevalence and predictors of refractive error among school children in Riyadh, Saudi Arabia. Saudi J Ophthalmol 2021; 34:273-277. [PMID: 34527871 PMCID: PMC8409345 DOI: 10.4103/1319-4534.322621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 08/22/2020] [Accepted: 09/10/2020] [Indexed: 11/24/2022] Open
Abstract
PURPOSE: Refractive error (RE) is one of the most common ocular disorders among children worldwide. This study aimed to investigate the prevalence of RE and possible risk factors among school children in Riyadh. METHODS: This is a cross-sectional study using data collected at various schools. To achieve the aim of the study, we selected a random sample of 850 school children aged 6–15 years. The examination was based on the RESC protocol and included full visual assessment. Furthermore, a questionnaire was sent to the parents of the participants to ascertain information about lifestyle factors. We constructed a logistic regression model to evaluate the predictors of RE. RESULTS: Close to a third of the children had a RE. Of those identified as having the condition, 60% did not wear glasses (newly diagnosed). Nearly all the children (95.4%) in our sample reported using electronic devices, according to parents. No association was found between using electronic devices and having a RE (P = 0.26). Doing outdoor activities was associated with 52% lower odds of a RE (odds ratio = 1.52). CONCLUSION: We found a higher prevalence of uncorrected RE than previously reported in other Saudi studies. About 60% of children who had RE were not wearing glasses, highlighting the need for a standardized school screening program for early detection and management. Outdoor activities were associated with a lower likelihood of having a RE. These findings might support initiatives to encourage outdoor activities among school children.
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Affiliation(s)
- Raed Alomair
- Department of Pediatric Ophthalmology and Optometry, King Abdullah Specialist Children's Hospital, Riyadh, Saudi Arabia
| | - Suliman A Alghnam
- Department of Population Health, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Bashair N Alnasser
- Department of Ophthalmology, Armed Forces Hospital, Dhahran, Saudi Arabia, Saudi Arabia
| | - Hana A Almuhawas
- Department of Pediatric Ophthalmology and Optometry, King Abdullah Specialist Children's Hospital, Riyadh, Saudi Arabia
| | - Saja A Alhoshan
- Department of Pediatric Ophthalmology and Optometry, King Abdulaziz Medical City, National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Bashayer S Altamimi
- Department of Optometry at Pennsylvania College of Optometry at Salus University, Pennsylvania, US
| | - Rana M Alshaye
- Department of Pediatric Ophthalmology and Optometry, King Abdullah Specialist Children's Hospital, Riyadh, Saudi Arabia
| | - Mohamad T Almuayli
- Department of Pediatric Ophthalmology and Optometry, King Abdullah Specialist Children's Hospital, Riyadh, Saudi Arabia
| | - Mazen K Alokiliy
- Department of Ophthalmology, Security Forces Hospital, Riyadh, Saudi Arabia
| | - Waleed J Alfawaz
- Department of Ophthalmology, Medical Center at Prince Naif College, Riyadh, Saudi Arabia
| | - Sultan K Alghamdi
- Department of Ophthalmology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
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Malaika R, Raffa L, Algethami M, Alessa S. Pediatric spectacle prescription: Understanding practice patterns among ophthalmologists and optometrists in Saudi Arabia. Saudi J Ophthalmol 2021; 34:278-283. [PMID: 34527872 PMCID: PMC8409352 DOI: 10.4103/1319-4534.322608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 08/22/2020] [Accepted: 10/05/2020] [Indexed: 11/04/2022] Open
Abstract
PURPOSE This study aims to understand the approach to prescribing spectacles for children and the interpretation of refractive errors among ophthalmologists/optometrists in Saudi Arabia. METHODS A cross-sectional survey was conducted between September and November 2018 using a database of online registrants for ophthalmologists and optometrists practicing in Saudi Arabia. The survey included 10 multiple-choice questions designed to elicit information about how ophthalmologists and optometrists deal with commonly encountered case scenarios covering different practical aspects of pediatric refraction. The responses were compared using the proportion of pediatric clientele received in the respondents' practices (Group A: <25%, Group B: 25%) and drawing upon concepts from the published literature. RESULTS One hundred and three participants, including ophthalmologists, specialists/registrars, and optometrists from across Saudi Arabia, participated in this survey. Approximately 25% were classified as Group A. Large discrepancies were observed between the participants' responses and actual practices based on guideline recommendations. Responses varied significantly between Groups A and B on certain issues pertaining to pseudomyopia (P < 0.001), anisometropia (P = 0.033), and high astigmatism (P = 0.023). CONCLUSION Practice patterns regarding pediatric spectacle prescription varied among ophthalmologists and optometrists in Saudi Arabia. The approach to managing refractive errors in children was better among ophthalmologists/optometrists servicing a larger pediatric clientele, suggesting the need to increase awareness among all groups of ophthalmologists/optometrists.
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Affiliation(s)
- Rawan Malaika
- Department of Ophthalmology, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Lina Raffa
- Department of Ophthalmology, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | | | - Sara Alessa
- Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
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Opportunities and threats to contact lens practice: A global survey perspective. Cont Lens Anterior Eye 2021; 44:101496. [PMID: 34426063 DOI: 10.1016/j.clae.2021.101496] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 06/11/2021] [Accepted: 07/26/2021] [Indexed: 12/14/2022]
Abstract
AIM To understand the views of contact lens (CL) practitioners across the globe regarding what they perceive as opportunities and threats in CL practice. METHODS A self-administered anonymised questionnaire, constructed in English and translated in six more languages, was distributed through reputed international professional bodies and academic institutions worldwide. The questionnaire included items on demographic characteristics, type of practice, and questions designed to explore practitioners' perspective on the future of their CL practice over the next five years. RESULTS A total of 2408 valid responses were analysed. Multifocal CLs for presbyopia, CLs for myopia control, use of daily disposable (DD) CLs for occasional wear, and biocompatible materials to improve comfort were identified as promising areas of opportunities by practitioners (all 8/10). Respondents from North America, and Europe valued DDCLs for occasional wear moderately more favourable (Median: 9/10 for all) as compared to colleagues in Asia (Median: 8/10, p < 0.001), South America (Median: 8/10, p < 0.01), and Africa (Median: 8/10p < 0.01). Multifocal CLs for presbyopia was perceived as a better opportunity by practitioners in North America and Europe (Median: 9/10 for both), as well as in Australasia (Median: 8/10), in comparison to Asia, Africa, and Middle East (for all Median: 6/10, p < 0.001). Practitioners expressed concerns about the availability of CLs and CL prescriptions online without direct professional involvement (both 9/10). CONCLUSIONS Overall, the most appealing opportunities for CL practice growth were identified in occasional use of DD CLs, biocompatible materials to reduce CL discomfort, multifocal CLs for presbyopia correction and management of myopia control with CLs. Lack of regulation in CL sales, especially online, seemed to be a constant threat. The insights from this study can be used to design targeted strategies to enhance CL practice across the globe and in specific geographical areas.
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Bahakim NO, Geddawy AI, Sharma K, Alkhathlan KM, Alsheddi MIM, Al-Zogbi ASA, Alonazi AS, Alzahrani MG, Albassam KAM, Al-Ghamdi S. Visual status among undergraduate students: Findings from an emerging university in Saudi Arabia. Saudi J Biol Sci 2021; 28:4683-4690. [PMID: 34354455 PMCID: PMC8324947 DOI: 10.1016/j.sjbs.2021.04.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Refractive error is an important preventable cause of visual impairment and blindness worldwide. In adult life, reduced vision can potentially affect the academic performance, choice of occupation and socio-economic status. This study aimed to assess the prevalence of refractive errors and related visual impairment among undergraduate male students in Prince Sattam bin Abdulaziz University in Al-Kharj, Saudi Arabia. METHODS A descriptive cross-sectional study was employed in the current work. After obtaining an informed consent; each eligible student was asked to fill a self-constructed survey and have screened in the college premises for visual acuity and refractive error. Candidates detected with defective vision have been referred for further examination at well-equipped ophthalmology clinic in the University Hospital. RESULTS A total of 420 undergraduate students, with age ranged from 18 to 30 years, have participated in the current study. About 25.0% of the participants have used spectacles at the time of examination. Positive family history of spectacles use was found in 71.4%. Our study showed that visual acuity in the better eye was low in 34.76% of the participants. Seventy-eight students (18.6%) of the total participants reported defective vision and have fulfilled refractometric examination. Of the examined students 83.3% were found to have refractive errors. Astigmatism, 52.6%, was the most frequently encountered refractive error among the participants; followed by myopia, 26.9%; and hypermetropia 2.6%. CONCLUSION The current study confirms that refractive error is an important preventable cause of visual impairment. Significant portion of the examined participants were found to have refractive errors recommending further work to improve visual status in undergraduate students.
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Affiliation(s)
- Nasraddin Othman Bahakim
- Department of Basic Medical Sciences, College of Medicine, Prince Sattam bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Ayman Ibrahim Geddawy
- Department of Basic Medical Sciences, College of Medicine, Prince Sattam bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
- Department of Pharmacology, Faculty of Medicine, Minia University, 61511 Minia, Egypt
| | - Kanika Sharma
- Departments of Opthalmology, College of Medicine, Prince Sattam bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
- Cornea Cataract Refractive Unit, Centre For Sight Eye Institute, Delhi 110043, India
| | | | | | | | - Ahmad Shihan Alonazi
- College of Medicine, Prince Sattam bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | | | | | - Sameer Al-Ghamdi
- Department of Family and Community Medicine, College of Medicine, Prince Sattam bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
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Alghamdi W. Prevalence of Refractive Errors among Children in Saudi Arabia: A Systemic Review. Open Ophthalmol J 2021. [DOI: 10.2174/1874364102115010089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Introduction:
The aim of this review was to estimate the prevalence of refractive errors (RE) and uncorrected refractive error (URE) in school-aged children of 4 to 14 years of age in Saudi Arabia.
Methods:
An extensive search was performed for peer-reviewed studies with data from the Saudi population during the past 20 years. The Cochrane Library, Pubmed, and Embase databases were used. Two independent reviewers evaluated publications and extracted the data. The quality of the studies was evaluated based on a critical appraisal tool designed for systematic reviews. The pooled prevalence of refractive error, uncorrected refractive error and different types of refractive error were estimated by using the random-effects meta-analysis.
Results and Discussion:
Eight school-based studies were included in this review. Among the overall pooled population of 12,247childern, the estimated prevalence of refractive error was 17.5% (95% CI: 11.1- 25). In the five studies that reported uncorrected refractive error (N=10,198), the pooled prevalence was 16.8% (95% CI: 11.4 – 21.3). The overall prevalence of refractive errors was very similar among boys, 16.8 (95% CI: 10.8- 24.1), and girls, 17.7% (95% CI: 10.2 – 25.9). Myopia was the most prevalent refractive error and was present in 40.8% (95% CI: 16.1 – 69.9) followed by astigmatism 29.7% (95% CI: 6.1- 61.7) and hyperopia 28.3% (95% CI: 16.9 – 41.2).
Conclusion:
This review highlights the high prevalence of refractive errors and uncorrected refractive error among children in Saudi Arabia. More studies are required using standardised methods in different regions where there is a lack of information on UREs. It is recommended that vision screening programs of children for RE should be implemented at the community level and integrated into school health programmes in order to detect UREs and prevent amblyopia, which is one of the debilitating consequences of URE.
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Yasir Z, Khandekar R, Balous M, Banaeem A, Al-Shangiti A, Basakran F, Alhumaid N, Al-Dhibi H. Prevalence and determinants of refractive status and related ocular morbidity among Indian school children in Riyadh, Saudi Arabia. Saudi J Ophthalmol 2021; 35:97-101. [PMID: 35391810 PMCID: PMC8982951 DOI: 10.4103/1319-4534.337848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 10/03/2019] [Accepted: 07/07/2020] [Indexed: 12/03/2022] Open
Abstract
PURPOSE: We present the magnitude and determinants of refractive status of Indian school children in Riyadh, Saudi Arabia. METHODS: This cross-sectional study was conducted in 2017–18 at a preparatory and secondary Indian school in Riyadh. A “Spot Screener” was used to determine if the child passed or failed a refraction test. Data were collected on refractive status in each eye, amblyopia, and strabismus. The type of refractive error (RE) was estimated and association to the gender, age group, and higher education was analyzed. RESULTS: We examined 770 students. The prevalence of RE in Indian school children was 50.3% (95% confidence interval [CI]: 51.3; 58.3). There were 51.1% of boys and 49.3% of girls. The prevalence of RE in preparatory and secondary grade students was 47.9% and 56.8%, respectively. The proportion of myopia and hyperopia among children with RE was 48% and 5%, respectively. Family history of RE was positively associated to RE in school children (odds ratio: 1.5 [95% CI: 1.1; 2.0]). The existing refractive services provided 47.4% coverage for children with RE. The current screening initiative could identify 22 (2.9%) new cases of RE who required visual aids and 38 (4.9%) students who needed a new prescription for RE. The compliance rate for using visual aid among students with RE was 78.9%. The prevalence of amblyopia and strabismus was 1.2% and 11%, respectively. CONCLUSION: A high proportion of Indian school students in Riyadh have RE. Periodic ocular assessment and refractive services are recommended for this group of school children.
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Agrawal D, Sahu A, Agrawal D. Prevalence of ocular morbidities among school children in Raipur district, India. Indian J Ophthalmol 2020; 68:340-344. [PMID: 31957723 PMCID: PMC7003595 DOI: 10.4103/ijo.ijo_1454_19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Purpose: To estimate the prevalence of various ocular morbidities in school children (5–15 years) utilizing a comprehensive mobile eye unit in Central India. Methods: A prospective, cross-sectional, school-based observational study was carried out in Raipur, Chhattisgarh, India between December 2017 and September 2018. A total of 1557 eligible school-going children in the age group 5–15 years were evaluated. Random sampling was done to allocate schools (n = 29) and children from various urban and rural (836 vs 721) schools. The primary objective was to estimate the prevalence of ocular morbidities in school-going children in Raipur district, India. The secondary objective was to analyze whether geographical location (rural vs urban), age group, and gender led to any differences in ocular morbidity patterns. Results: The mean age of the study population was 10.3 ± 2.4 years. There were 691 (44.4%) boys and 866 (55.6%) girls. Ocular morbidity was present in a total of 331 (21.2%) children. Vitamin A deficiency was the most common cause of ocular morbidity, noted in 156 (10%) children, followed by refractive error (81, 5.2%). Myopia was significantly higher in urban school children (4.3%) compared to rural children (1.9%) (P = 0.002). The older age group had a higher prevalence (7.6%) of refractive error, especially myopia, compared to the younger age group (2.2%) (P < 0.001). Conclusion: Vitamin A deficiency prevalence was much higher indicating missed opportunities for vitamin A supplementation at a younger age. Refractive error was more prevalent in the urban population as well in the older age group (11–15 years), indicating a need for frequent eye screening.
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Affiliation(s)
- Deepanshu Agrawal
- Ophthalmology Resident, MGM Eye Institute, Raipur, Chhattisgarh, India
| | - Anupam Sahu
- Consultant, Pediatric Ophthalmology and Strabismus Services, MGM Eye Institute, Raipur, Chhattisgarh, India
| | - Deepshikha Agrawal
- Consultant, Cornea and Anterior Segment Services MGM Eye Institute, Raipur, Chhattisgarh, India
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Magakwe TS, Xulu-Kasaba ZN, Hansraj R. Visual impairment and refractive error amongst school-going children aged 6–18 years in Sekhukhune District (Limpopo, South Africa). AFRICAN VISION AND EYE HEALTH 2020. [DOI: 10.4102/aveh.v79i1.551] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Background: Refractive error (RE) and visual impairment (VI) remain major problems affecting school-going children worldwide.Aim: To determine the prevalence and distribution of VI and RE in school-going children aged 6–18 years.Setting: The study was conducted in Sekhukhune District, Limpopo, South Africa.Methods: A multistage random sampling method was used to select school-going children aged 6–18 years from Grades 1 to 12. A total of 326 learners went through eye examinations, which included visual acuity (VA) measurement using a logarithm of the minimum angle of resolution chart, autorefraction under cycloplegia and ocular health assessment.Results: The prevalence of uncorrected, presenting and best-corrected VA of 0.30 M or worse in the better eye was 12.3% (95% confidence interval [CI], 8.70–15.80), 12.3% (95% CI, 8.70–15.80) and 2.1% (95% CI, 0.60–3.70), respectively. Refractive error accounted for 80% (95% CI, 67.6–92.4) of all causes of VI. Myopia was the most prevalent RE (50.7%; 95% CI, 38.8–62.7), followed by astigmatism (36%; 95% CI, 24.3–47.3) and hypermetropia (13.6%; 95% CI, 5.30–21.6). There was no significant difference in the prevalence of RE and VI between males (50.7%; 95% CI, 38.8–62.7) and females (49.3%; 95% CI, 37.3–61.2). Refractive error and VI were higher amongst children aged 14–18 years: 56.7% (95% CI, 44.9–68.6) and 60% (95% CI, 44.8–75.20), respectively.Conclusion: The prevalence of RE and VI amongst school-going children in Sekhukhune District was high, highlighting the need for school visual screening and strategies to address these conditions in that area.
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Hung HD, Chinh DD, Tan PV, Duong NV, Anh NQ, Le NH, Tuan HX, Anh NT, Duong NTT, Kien VD. The Prevalence of Myopia and Factors Associated with It Among Secondary School Children in Rural Vietnam. Clin Ophthalmol 2020; 14:1079-1090. [PMID: 32368006 PMCID: PMC7183771 DOI: 10.2147/opth.s251218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 04/03/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose To assess the prevalence of myopia and associated factors among secondary school children in a rural area of Vietnam.
Methods A school-based cross-sectional study of children in grades six to nine was conducted in four secondary schools in Hoang Mai town, Nghe An Province, Vietnam, during December 2018 and January 2019. The status of myopia was defined as a spherical equivalent objective refractive error of −0.50 D or worse in either eye. A case–control study was conducted to explore factors associated with myopia, where children with myopia were considered to be cases, and children without myopia were considered to be controls. Factors associated with myopia were analyzed using univariate and multivariate logistic regression. Results The prevalence of myopia among secondary school children was 14.2% (95% CI: 12.7–15.7%) and tended to increase with grade, from 10.5% in grade six to 17.7% in grade nine. Myopia prevalence in girls was significantly higher than in boys. Factors associated with myopia were a mother with a college/university education (OR = 2.5, 95% CI = 1.2–5.3), parents who wore spectacles (OR = 2.0, 95% CI = 1.1–3.8), distance from near work (OR = 5.2, 95% CI = 3.5–7.9), and taking breaks after 30 minutes of continued reading (OR = 1.6, 95% CI = 1.1–2.5). However, there were inverse associations with myopia for children belonging to the wealthiest households (OR = 0.2, 95% CI = 0.1–0.5) and time spent performing outdoor activities (OR = 0.6, 95% CI = 0.4–0.9). Conclusion Our study showed that the prevalence of myopia is considerable among secondary children in rural areas of Vietnam. The prevalence of myopia tended to increase among children in higher grade levels. Thus, appropriate interventions should be developed and conducted to deal with the issue of school-age myopia.
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Affiliation(s)
- Ho Duc Hung
- Quynh Lap National Leprosy Dermatology Hospital, Hoang Mai Town, Nghe An, Vietnam
| | | | | | - Nguyen Viet Duong
- Quynh Lap National Leprosy Dermatology Hospital, Hoang Mai Town, Nghe An, Vietnam
| | | | | | - Ho Xuan Tuan
- School of Medicine and Pharmacy, The University of Da Nang, Da Nang City, Vietnam
| | | | | | - Vu Duy Kien
- OnCare Medical Technology Company Limited, Hanoi, Vietnam
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Khoshhal F, Hashemi H, Hooshmand E, Saatchi M, Yekta A, Aghamirsalim M, Ostadimoghaddam H, Khabazkhoob M. The prevalence of refractive errors in the Middle East: a systematic review and meta-analysis. Int Ophthalmol 2020; 40:1571-1586. [PMID: 32107693 DOI: 10.1007/s10792-020-01316-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 02/10/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE The purpose of the present study was to evaluate the prevalence of refractive errors in the Middle East region. METHODS In this meta-analysis, a structured strategy was applied to search databases PubMed, Web of Science, Scopus, and Google Scholar, databases as well as the reference lists of the selected articles to identify cross-sectional studies assessing the prevalence of refractive errors in the Middle East region until September 2019. The outcome measure was the prevalence of refractive errors, including myopia, hyperopia, and astigmatism, in two age groups of ≤ 15 years and > 15 years. The study results were combined using a random effects model at a confidence level of 95%. RESULTS The prevalence of myopia, hyperopia, and astigmatism was 4% (95% CI 4, 5), 8% (95% CI 6, 10), and 15% (95% CI 10, 19) in people less than or equal to 15 years and 30% (95% CI 25, 34), 21% (95% CI 15, 28), and 24% (95% CI 16, 31) in subjects over 15 years, respectively. The prevalence of myopia, hyperopia, and astigmatism was 3.5%, 12.4%, and 9.0% in male and 4.2%, 13.1%, and 9.9% in female subjects aged ≤ 15 years, respectively. In subjects aged > 15 years, the prevalence was 31.7%, 14.5%, and 31.5% in males and 31.9%, 11.2%, and 31% in females, respectively. CONCLUSION The prevalence of hyperopia is relatively high in Middle Eastern children, while the prevalence of myopia is higher in adults in this region. It seems that astigmatism is not a serious refractive problem in this region compared to the rest of the world.
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Affiliation(s)
- Fahimeh Khoshhal
- Department of Pediatrics, Dezful University of Medical Sciences, Dezful, Iran
| | - Hassan Hashemi
- Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran.
| | - Elham Hooshmand
- Iranian Research Center on Aging, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mohammad Saatchi
- Department of Epidemiology, School of Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbasali Yekta
- Department of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Hadi Ostadimoghaddam
- Refractive Errors Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Khabazkhoob
- Department of Medical Surgical Nursing, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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A Serial Cross-Sectional Analysis of the Prevalence, Risk Factors and Geographic Variations of Reduced Visual Acuity in Primary and Secondary Students from 2000 to 2017 in Hong Kong. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17031023. [PMID: 32041191 PMCID: PMC7036919 DOI: 10.3390/ijerph17031023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 01/20/2020] [Accepted: 01/31/2020] [Indexed: 11/17/2022]
Abstract
Background: We would like to investigate the prevalence trend, potential risk factors and geographic features of reduced visual acuity (VA) in primary and secondary schoolchildren of Hong Kong. Methods: This was a serial cross-sectional study using historical data of schoolchildren aged 6 to 15 years from the annual health checks conducted at Student Health Service Centers across Hong Kong, for the school years of 2000/2001 to 2016/2017. Results: The prevalence of reduced VA increased from 49.23% (95% CI, 48.99-49.47) in 2000/2001 to 54.34% (95% CI, 54.10-54.58) in 2011/2012 but decreased to 51.42% (95% CI, 51.17-51.66) in 2016/2017. Girls were less susceptible than boys at age 6-7 (and in grade primary 1-2), but more susceptible at older ages. The prevalence in junior grades increased while the risk effect of grade reduced over the past 17 years. Geographic variation on the risk for reduced VA existed and spatial autocorrelation was positive. The difference in prevalence of reduced VA between Hong Kong and mainland China has decreased in recent years. Cross-border students living in mainland China were associated with a lower risk for reduced VA. Conclusions: Further study was proposed to investigate the environmental association between students living in and outside Hong Kong with the prevalence of reduced VA. Multi-level research should also be conducted to investigate the influence of compositional and contextual factors on the prevalence of reduced VA.
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Grzybowski A, Kanclerz P, Tsubota K, Lanca C, Saw SM. A review on the epidemiology of myopia in school children worldwide. BMC Ophthalmol 2020; 20:27. [PMID: 31937276 PMCID: PMC6961361 DOI: 10.1186/s12886-019-1220-0] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 10/14/2019] [Indexed: 01/29/2023] Open
Abstract
Background Due to high prevalence myopia has gained importance in epidemiological studies. Children with early onset are at particular risk of complications associated with myopia, as progression over time might result in high myopia and myopic macular degeneration. Both genetic and environmental factors play a role in the increasing prevalence of myopia. The aim of this study is to review the current literature on epidemiology and risk factors for myopia in school children (aged 6–19 years) around the world. Main body PubMed and Medline were searched for the following keywords: prevalence, incidence, myopia, refractive error, risk factors, children and visual impairment. English language articles published between Jan 2013 and Mar 2019 were included in the study. Studies were critically reviewed for study methodology and robustness of data. Eighty studies were included in this literature review. Myopia prevalence remains higher in Asia (60%) compared with Europe (40%) using cycloplegic refraction examinations. Studies reporting on non-cycloplegic measurements show exceptionally high myopia prevalence rates in school children in East Asia (73%), and high rates in North America (42%). Low prevalence under 10% was described in African and South American children. In recent studies, risk factors for myopia in schoolchildren included low outdoor time and near work, dim light exposure, the use of LED lamps for homework, low sleeping hours, reading distance less than 25 cm and living in an urban environment. Conclusion Low levels of outdoor activity and near work are well-established risk factors for myopia; this review provides evidence on additional environmental risk factors. New epidemiological studies should be carried out on implementation of public health strategies to tackle and avoid myopia. As the myopia prevalence rates in non-cycloplegic studies are overestimated, we recommend considering only cycloplegic measurements.
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Affiliation(s)
- Andrzej Grzybowski
- Department of Ophthalmology, University of Warmia and Mazury, Olsztyn, Poland. .,Foundation for Ophthalmology Development, Institute for Research in Ophthalmology, Gorczyczewskiego 2/3, 60-554, Poznan, Poland.
| | | | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan.,Tsubota Laboratory, Inc., Tokyo, Japan
| | - Carla Lanca
- Singapore Eye Research Institute, Singapore, Singapore
| | - Seang-Mei Saw
- Singapore Eye Research Institute, Singapore, Singapore.,Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.,Duke-NUS Medical School, Singapore, Singapore
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Zeried FM, Alshalan FA, Simmons D, Osuagwu UL. Visual impairment among adults in Saudi Arabia. Clin Exp Optom 2019; 103:858-864. [PMID: 31802542 DOI: 10.1111/cxo.13022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 10/29/2019] [Accepted: 11/04/2019] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND To estimate the prevalence of visual impairment, and identify its causes and associated factors among adults aged 40 years and over, attending for eye examination at a Riyadh public hospital in Saudi Arabia. METHODS This was a retrospective cross-sectional study conducted among 195 consecutive older adults who attended the outpatient ophthalmology clinic of King Abdul-Aziz University Hospital between 1 February and 30 June 2018. All participants underwent comprehensive ophthalmic examination: visual acuity, refraction (objective and subjective), fundus photography and automated visual field assessment. Classification of visual impairment was based on the World Health Organization criteria: mild visual impairment if best-corrected distance visual acuity < 6/12-6/18 in the better eye; moderate visual impairment if best-corrected visual acuity < 6/18-6/60 in the better eye; and severe visual impairment if best-corrected visual acuity < 6/60-3/60. Regression analysis was used to identify the factors associated with visual impairment. RESULTS The study participants included 107 (54.9 per cent) females, and the mean (SD) age was 61.1 ± 10.9 years. The overall prevalence of visual impairment (14.9 per cent, 29 cases), consisting of severe (0.5 per cent), moderate (9.7 per cent) and mild (4.6 per cent) forms, correlated significantly with age (R2 = 0.023, p = 0.04). The main causes of visual impairment were glaucoma (48.3 per cent), cataract (31.0 per cent), refractive error, and diabetic retinopathy (24.1 per cent each). The odds of having visual impairment increased by 22 per cent and eight per cent respectively in participants who had diabetic retinopathy (adjusted odds ratio 1.22, 95% confidence interval [CI] 1.05, 1.95) and glaucoma (1.08, CI 1.02, 1.40). CONCLUSIONS The prevalence of visual impairment among older adults attending the ophthalmology clinic in Riyadh city was high and driven by the high rate of diabetic retinopathy and glaucoma in this region. As part of their routine checks, there is need to make dilated fundus examination and intraocular pressure measurement mandatory tests in addition to refraction and visual acuity testing, when examining Saudi adults attending the hospital eye clinics in Riyadh province.
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Affiliation(s)
- Ferial M Zeried
- Department of Optometry and Vision Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Fay Ah Alshalan
- Department of Optometry and Vision Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - David Simmons
- Macarthur Clinical School, Diabetes, Obesity and Metabolism Translational Research Unit (DOMTRU), School of Medicine, Western Sydney University, Campbelltown, Australia
| | - Uchechukwu L Osuagwu
- Macarthur Clinical School, Diabetes, Obesity and Metabolism Translational Research Unit (DOMTRU), School of Medicine, Western Sydney University, Campbelltown, Australia
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Atowa UC, Wajuihian SO, Hansraj R. A review of paediatric vision screening protocols and guidelines. Int J Ophthalmol 2019; 12:1194-1201. [PMID: 31341813 DOI: 10.18240/ijo.2019.07.22] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/25/2018] [Indexed: 11/23/2022] Open
Abstract
Vision screening plays an important role in the early detection of children who have or probably are predisposed to have specific visual problems. The validity and reliability of the screening batteries in relation to the age group to be screened, and the person administering the test as well as the referral and follow-up criteria contribute to the overall outcome of the vision screening. Despite the long history of vision screening and significant improvement in the development of screening protocols, no agreement exists concerning the age at which children should be screened, the exact test batteries that should be included and who should conduct the screening. This review highlights some important aspects of the history of paediatric vision screening and available evidence in support of their use to detect visual conditions in children. It also examines some of the barriers against the development of paediatric vision screening models especially in low and medium income countries.
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Affiliation(s)
- Uchenna C Atowa
- Discipline of Optometry, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Samuel O Wajuihian
- Discipline of Optometry, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Rekha Hansraj
- Discipline of Optometry, University of KwaZulu-Natal, Durban 4000, South Africa
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Atowa UC, Hansraj R, Wajuihian SO. Visual problems: a review of prevalence studies on visual impairment in school-age children. Int J Ophthalmol 2019; 12:1037-1043. [PMID: 31236365 DOI: 10.18240/ijo.2019.06.25] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 01/17/2019] [Indexed: 11/23/2022] Open
Abstract
Childhood visual impairment (VI) have a significant impact on the educational achievement, career choices and social life of affected individual, and in children, is mainly due to either preventable or treatable causes. Reliable data on the prevalence and causes of VI in children will guide the development of a systematic vision screening program for its early detection and successful treatment of possible causes. The purpose of this literature review is to summarize the available data on prevalence and causes of VI in school-age children from various regions globally. A discussion on the major findings highlighting the definition criteria, classifications and limitations for further studies is also presented.
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Affiliation(s)
- Uchenna C Atowa
- Discipline of Optometry, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Rekha Hansraj
- Discipline of Optometry, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Samuel O Wajuihian
- Discipline of Optometry, University of KwaZulu-Natal, Durban 4000, South Africa
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Atowa UC, Hansraj R, Wajuihian SO. Vision problems: A review of prevalence studies on refractive errors in school-age children. AFRICAN VISION AND EYE HEALTH 2019. [DOI: 10.4102/aveh.v78i1.461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Background: Refractive errors are common eye disorders and are leading causes of visual impairment in the general population. Children with uncorrected refractive error may experience reduced visual acuity, transient blurring, headache and persistent ocular discomforts particularly for close work which can impair reading efficiency and school performance.Aim: This article documents the prevalence of refractive errors in school-age children of different ethnic origins. The goal is to identify possible variation in measuring techniques and diagnostic criteria, as well as limitations of studies, to provide a clear direction for future studies.Methods: The review was undertaken through a detailed evaluation of peer-reviewed publications of primary research on this topic. The keywords for the search included ‘refractive error’, ‘hyperopia’, ‘myopia’, ‘astigmatism’ and ‘school children’. Only epidemiological studies with participants between 5 and 18 years of age were included.Results: Although several population and school-based studies have been conducted in various racial groups and populations, their findings were diverse owing to inconsistencies in the methods applied in identifying children in need of refraction, measurement techniques and diagnostic criteria for refractive errors. There are also some limitations associated with the sampling design and characteristics, which may have influenced the outcome measures.Conclusion: Despite the problems inherent in the studies, the review indicates that refractive error in school-age children is a public health concern in those populations and warrants additional research that will provide reliable data for proper planning of intervention strategies.
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Algethami MR, Raffa LH, Alhibshi RH, Baabdullah MY, Alobudi AH. Vision screening services in special needs schools in Western Saudi Arabia. Saudi Med J 2019; 40:385-390. [PMID: 30957133 PMCID: PMC6506666 DOI: 10.15537/smj.2019.4.24076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Objectives: To evaluate the current status of vision screening services in special educational needs (SEN) schools in the western region of Saudi Arabia. Methods: This was a cross-sectional study that involved distribution of a questionnaire to all 30 SENs schools in the western region of Saudi Arabia between April and May 2018. Results: Twenty-three schools responded to the questionnaire (77% response rate). The number of pupils represented in the surveyed schools was 1831. On average, 10.8% of pupils were reported to wear eyeglasses. Approximately 60.9% of schools reported that vision screening was not offered at their schools. The percentage of students who used optical, non-optical, or high-technology low-vision aids was <2.7%. Most participants (78.3%) reported that no one in their schools had received some form of training to work with and support students with visual impairments. Conclusion: In the western province of Saudi Arabia, the vision care status of individuals with intellectual disabilities (ID) in SEN schools is poor. To better serve this underprivileged group, the necessity of implementing vision screening programs on a larger scale should be considered.
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Affiliation(s)
- Mohammed R Algethami
- Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia. E-mail:.
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Alsaif BA, Aljindan MY, Alrammah HM, Almulla MO, Alshahrani SS. Refractive errors among Saudi college students and associated risk factors. Clin Ophthalmol 2019; 13:437-443. [PMID: 30880904 PMCID: PMC6398403 DOI: 10.2147/opth.s193213] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objectives To determine the prevalence of refractive errors among freshman students of Imam Abdulrahman Bin Faisal University (IAU), and to examine the relationship of near-work activities and outdoor activities with refractive errors. Methods A cross-sectional study of 338 freshman students of IAU (162 males, 176 females) was carried out. Students were selected using a simple random sampling technique. Eye examination was done including non-cycloplegic autorefraction for determining the refractive error status. Myopia was defined as spherical equivalent refraction (SER) ≤−0.75 diopters (D), and it was further divided into low myopia (SER from −0.75 D to −2.99 D), moderate myopia (SER from −3.00 to −5.99 D), and high myopia (SER ≤−6.00 D). Hyperopia was defined as SER ≥1.00 D and emmetropia as having an SER value between that of low myopia and hyperopia. SER was calculated as sphere + 1/2 cylinder. A questionnaire detailed on activities was completed by participants. Results Myopia was found in 47.9% of the students (95% CI 42.7%–53.3%). The most prevalent type of myopia was low myopia (66.7%; 95% CI 59.1%–73.5%). Hyperopia and emmetropia were found in 6.5% (95% CI 4.3%–9.7%) and 45.6% (95% CI 40.3%–50.9%) of the students, respectively. Parental myopia was significantly associated with the myopic status of the students (P=0.007, Fisher’s exact test). About 6% of myopic students had a history of myopia in both parents. In addition, both parents had a history of myopia in 1.9% of emmetropic students, whereas such an association was absent in the hyperopic students. Refractive error type in both genders was not significantly predicted by the activity type. Conclusion Although the different types of activities did not predict the types of refractive errors, the high prevalence of myopia among the college students at this age requires further studies to explore more about the clinical characteristics and risk factors of the disease.
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Affiliation(s)
- Bayan A Alsaif
- College of Medicine, King Fahad Hospital of the University, Imam Abdulrahamn Bin Fasial University, Khobar, Saudi Arabia,
| | - Mohanna Y Aljindan
- Department of Ophthalmology, King Fahad Hospital of the University, Imam Abdulrahman Bin Fasial University, Khobar, Saudi Arabia
| | - Hanan M Alrammah
- College of Medicine, King Fahad Hospital of the University, Imam Abdulrahamn Bin Fasial University, Khobar, Saudi Arabia,
| | - Malak O Almulla
- College of Medicine, King Fahad Hospital of the University, Imam Abdulrahamn Bin Fasial University, Khobar, Saudi Arabia,
| | - Saad S Alshahrani
- Epidemiology Department, King Fahd Specialist Hospital, Dammam, Saudi Arabia
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Prevalence of Myopia among Children Attending Pediatrics Ophthalmology Clinic at Ohud Hospital, Medina, Saudi Arabia. J Ophthalmol 2018; 2018:3708409. [PMID: 30524756 PMCID: PMC6247464 DOI: 10.1155/2018/3708409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 09/09/2018] [Accepted: 10/10/2018] [Indexed: 11/17/2022] Open
Abstract
Introduction Around half of the visually impaired population has uncorrected refractive errors (URE), and myopia constitutes a high proportion of them. URE should be screened and treated early to prevent long-term complications. The aim of this study was to determine the prevalence of myopia among all patients attending a pediatric outpatient clinic at Ohud Hospital in Medina, Saudi Arabia (KSA). Method This study was conducted using a convenience sample of all patients attending the clinic (1500 patients) aged between 3 and 14 years, and they were enrolled in the study during the period from May 2017 until September 2017. Result Of 1215 subjects, only 43 (3.54%) were diagnosed with myopia. Out of the study participants, 56.8% were female and the mean age was 9.7 ± 3.6. Myopia was more prevalent in male participants than female participants (n = 525, 4%, n = 690, 3.1%, p=0.5). Low myopia was the most common form among the screened individuals. The level of myopia was associated with the degree of the strabismus angle. Approximately 22% of patients with myopia had >25° strabismus angle. There was a statistically significant association with both near work indoor and outdoor activities on weekends and the level of myopia. Conclusion The prevalence of myopia among pediatrics patients in Medina is 3.54%. We hope that the results of this study will contribute to a better understanding of this public health issue in Saudi Arabia in order to implant a strict screening program for early detection and interventions to reduce the risk of further progression of visual impairment.
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Al Bahhawi T, Makeen AM, Daghreeri HH, Tobaigy MF, Adawi AM, Guhal FM, Akkur MA, Alotayfi MJ, Otayf MM, Bajoned MS, Mahfouz MS. Refractive Error among Male Primary School Students in Jazan, Saudi Arabia: Prevalence and Associated Factors. Open Ophthalmol J 2018; 12:264-272. [PMID: 30369991 PMCID: PMC6174611 DOI: 10.2174/1874364101812010264] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/25/2018] [Accepted: 09/10/2018] [Indexed: 12/04/2022] Open
Abstract
Background: Refractive error is a common and serious eye disorder that affects more than 153 million people globally. The aim of this study was to estimate the prevalence and pattern of refractive error among male primary school children in Jazan region, Saudi Arabia. Methods: A cross-sectional study was conducted among a randomly selected group of 395 students (aged 6-14 years) in Jazan region, Southwest Saudi Arabia. An optometrist and medical students assessed the refraction error using an autorefractor, a Snellen E chart and retinoscopy. Results: The overall prevalence of uncorrected refractive error in either eye was, 22% higher among rural students. The most prevalent refractive error was hyperopia (32.2%) followed by myopic astigmatism (31%) then myopia (17.2%). Next were hyperopic astigmatism (16.1%) and mixed astigmatism (3.5%). The following variables were associated with a higher risk of refractive errors and myopia: living in rural areas, having parents with refractive errors, spending more time on electronic devices and shorter visual distances. Conclusion: Refractive error was highly prevalent among primary school children in Jazan, Saudi Arabia. The rural students were more affected by refractive errors, mainly hyperopia. The preschool vision test should be reconsidered, and a periodic vision examination should be applied to detect vision problems as early as possible.
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Affiliation(s)
- Tariq Al Bahhawi
- Department of Community Medicine, Faculty of Medicine, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - Anwar M Makeen
- Department of Community Medicine, Faculty of Medicine, Jazan University, Jazan, Kingdom of Saudi Arabia
| | | | | | | | | | | | | | | | | | - Mohamed Salih Mahfouz
- Department of Community Medicine, Faculty of Medicine, Jazan University, Jazan, Kingdom of Saudi Arabia
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Talebnejad MR, Nowroozzadeh MH, Mahdaviazad H, Khalili MR, Masoumpour MB, Keshtkar M, Mohammadi E, Tajbakhsh Z. The Shiraz Pediatric Eye Study; a Population Based Survey of School Age Children: Rationale, Design and Baseline Characteristics. J Ophthalmic Vis Res 2018; 13:293-300. [PMID: 30090186 PMCID: PMC6058549 DOI: 10.4103/jovr.jovr_246_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Purpose: To describe the rationale, study design, methodology, and baseline characteristics of the Shiraz Pediatric Eye Study, a population-based survey of schoolchildren in Shiraz, Iran. Methods: This population-based study included schoolchildren aged 6–12 years from all four educational districts of Shiraz who were recruited in years 2015–2016. Stratified random sampling was used to select 2400 participants from all districts. Data were recorded from a detailed interview and ocular evaluation of each eligible student. The eye examination comprised uncorrected and best corrected visual acuity measurement, refraction, external eye examination (including specific strabismus and lid evaluation tests), slit lamp biomicroscopy, intraocular pressure measurement, the Ishihara color vision test, and stereoacuity. Exophthalmometry, optical biometry, and optical coherence tomography were performed for a randomly selected subset of children. General characteristics and socioeconomic variables were also recorded to assess risk factors. Results: From a total of 2400 selected students, 2001 (83.3%) participated in the study. The mean age of the students was 9.1 ± 1.6 years, and 59.7% were girls. Most children had at least one parent with a diploma or less than diploma (63.5%), and 2.2% had illiterate parents. Conclusion: This study is expected to provide accurate estimates of the prevalence of visual impairments and their related determinants in Shiraz. In addition, it will identify children who should be targeted by blindness prevention programs.
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Affiliation(s)
| | | | - Hamideh Mahdaviazad
- Poostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Family Medicine, School of medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Khalili
- Poostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Maryam Keshtkar
- Poostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Elham Mohammadi
- Poostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Tajbakhsh
- Poostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Optometry, School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
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Nascimento JC, Lima MA, Barros LM, Galindo Neto NM, Pagliuca LMF, Caetano JÁ. Technology for performing ocular self-examination: comparison between printed and virtual booklets. Rev Esc Enferm USP 2018; 52:e03326. [PMID: 29846487 DOI: 10.1590/s1980-220x2017024703326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 12/19/2017] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Comparing the results of the ocular self-examination performed with the aid of printed and virtual versions of an educational booklet. METHOD A quasi-experimental study carried out in a state (public) school of a capital in northeast Brazil, with 100 students equally divided into control and intervention groups according to age, gender, schooling and economic status. Pearson's Chi-square test and Fisher's exact test were applied with a significance level of 5%. RESULTS The results of the self-examination obtained by the virtual and printed booklets were statistically similar, except for the item 'Alterations of the pupillary reflex', in which the virtual booklet was more effective for its identification (p=0.049). CONCLUSION The printed and virtual versions of the ocular educational booklet have similar efficacy for performing ocular self-examination.
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Affiliation(s)
| | | | - Lívia Moreira Barros
- Programa de Pós-Graduação em Enfermagem, Universidade Federal do Ceará, Fortaleza, Ceará, Brasil
| | | | | | - Joselany Áfio Caetano
- Programa de Pós-Graduação em Enfermagem, Universidade Federal do Ceará, Fortaleza, Ceará, Brasil
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Alswailmi FK. Global prevalence and causes of visual impairment with special reference to the general population of Saudi Arabia. Pak J Med Sci 2018; 34:751-756. [PMID: 30034452 PMCID: PMC6041538 DOI: 10.12669/pjms.343.14510] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective: This review was undertaken to highlight the worldwide prevalence and causes of visual impairment (VI), on the basis of a wide range of recent and clearly defined data and in comparison with published articles from the Kingdom of Saudi Arabia. Methods: These data are mainly based on PubMed indexed journal articles. Some representative surveys from each of the six WHO regions across the globe were included in this review with special reference to Saudi Arabian studies. Results: Published literature show that the prevalence and causes of VI varies markedly in different parts of the world and from region to region within the same country. Cataract, uncorrected refractive errors and glaucoma were shown to be the leading causes of VI worldwide and in Saudi Arabia. Diabetic retinopathy was found to have more contribution in Saudi Arabia due the higher prevalence of diabetes mellitus in this country. Conclusion: Epidemiological surveys about the prevalence and causes of VI are crucial for the formulation of preventive and curative measures. Data about VI are still scarce with a need to make wider population based surveys, worldwide and in Saudi Arabia for in-depth evaluation of the problem and better strategies to reduce the burden of VI.
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Affiliation(s)
- Farhan Khashim Alswailmi
- Dr. Farhan Khashim Alswailmi, M.D. Faculty of Applied Medical Sciences, University of Hafr Albatin, Hafr Albatin, Kingdom of Saudi Arabia
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Alsaqr A, Abu Sharha A, Fagehi R, Almutairi A, Alosaimi S, Almalki A, Alluwaymi A. The visual status of adolescents in Riyadh, Saudi Arabia: a population study. Clin Ophthalmol 2018; 12:965-972. [PMID: 29872255 PMCID: PMC5973314 DOI: 10.2147/opth.s162319] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Purpose The visual status of adolescents in Saudi Arabia (SA) has not been well reported. To date, the prevalence and types of refractive errors (REs), amblyopia, strabismus, and correctable visual impairments have not been quantified. The aim of the study was to investigate the visual status in adolescents in Riyadh, SA. Methods This study was based on a population cross-sectional and random cluster design. After design and the sample calculations, 1,007 participants, 12–20 years of age, were screened during the study. Nine participants were excluded due to ocular disorders. The participants were assessed for REs, distance visual acuity logarithm of the minimum angle of resolution, contrast sensitivity, stereoacuity, pinhole test findings, and cover–uncover test findings. Results The results showed that 55.5% of the participants had some form of REs, while correctable visual impairment was found in one-fifth of the screened participants. Myopia was the dominant type (53.3%, ranged from −0.50 DS to −14.00 DS), whereas hyperopia was found in 2.2% (+2.00 DS to +5.50 DS) and astigmatism was present in 15% (−0.75 DC to −5.25 DC). Only 43% of the participants had corrected REs; however, the noncompliance for spectacle use was 20.25%. Conclusion This study was the first attempt to investigate the visual status in adolescents in SA. It provided estimations of the REs, amblyopia, and strabismus. The high prevalence of REs emphasizes the need to identify the best proactive strategies to detect and manage REs to reduce the incidence of visual impairment in SA. Increasing awareness about eye health and employing efficient screening programs could help to address the need for REs corrections.
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Affiliation(s)
- Ali Alsaqr
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Ali Abu Sharha
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Raied Fagehi
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Awatif Almutairi
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Sarah Alosaimi
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abdulrahman Almalki
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abdulaziz Alluwaymi
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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Al-Rashidi SH, Albahouth AA, Althwini WA, Alsohibani AA, Alnughaymishi AA, Alsaeed AA, Al-Rashidi FH, Almatrafi S. Prevalence Refractive Errors among Medical Students of Qassim University, Saudi Arabia: Cross-Sectional Descriptive Study. Open Access Maced J Med Sci 2018; 6:940-943. [PMID: 29875876 PMCID: PMC5985887 DOI: 10.3889/oamjms.2018.197] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 04/08/2018] [Accepted: 03/09/2018] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE: To study the prevalence of various errors of refraction among the medical students studying at the college of medicine, Qassim University, Saudi Arabia. METHODS: This is a cross-sectional descriptive study conducted at Qassim University clinics over a period of two months. The study population comprised 162 male and female students from different academic years. The students were selected randomly so that around 35-40 students were taken from each academic class. The selected study population was explained the objectives of the study and a written consent form that stated the purpose, methods, risks, benefits, and the assurance of the confidentiality of the data was obtained from each student. After giving the consent, each subject was examined by auto refractometer. The examination was carried out by an optometrist without using cycloplegia. Both right and left eyes were thoroughly examined by auto refractometer and on the average three readings of the refraction measurements were taken. The readings were recorded on a data sheet of every individual, and the Statistical analysis was performed using Statistical Package for Social Sciences (SPSS). RESULTS: One hundred and sixty-two (162) students with a mean age of 22.44 years, Std 1.661 and a range of 8 (19-27) were included in the study. Of the total number, 111 (68.51%) were males and remaining 51 (31.48%) were females. Of the total sample, only 1 (0.617%) student had diabetes mellitus, and 6 (3.70%) students gave a history of previous ocular surgery. Myopia was found to be the commonest error of refraction 53.7% with hyperopia next to it. CONCLUSION: Myopia is found to be a common error of refraction in young adults. A regular checkup is essential to timely correct the error and to prevent deterioration of the vision.
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Affiliation(s)
- Sultan H Al-Rashidi
- Department of Ophthalmology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
| | - Adel A Albahouth
- Department of Ophthalmology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
| | - Waleed A Althwini
- Department of Ophthalmology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
| | - Abdullah A Alsohibani
- Department of Ophthalmology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
| | | | - Abdulamlaik A Alsaeed
- Department of Ophthalmology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
| | - Fahad H Al-Rashidi
- Department of Ophthalmology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
| | - Salem Almatrafi
- Department of Ophthalmology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
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Alrahili NHR, Jadidy ES, Alahmadi BSH, Abdula'al MF, Jadidy AS, Alhusaini AA, Mojaddidi MA, Al-Barry MA. Prevalence of uncorrected refractive errors among children aged 3-10 years in western Saudi Arabia. Saudi Med J 2018; 38:804-810. [PMID: 28762432 PMCID: PMC5556296 DOI: 10.15537/smj.2017.8.20412] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objectives: To determine the prevalence of uncorrected refractive errors (URE) among children 3-10 years and to affirm the necessity of a national school-based visual screening program for school-aged children. Methods: This retrospective cross-sectional study was conducted in Medina, Saudi Arabia in 2015. Children were selected through a multistage stratified random sampling from 8 kindergarten and 8 primary schools. Those included were screened to diagnose UREs using a visual acuity chart and an auto refractometer according to American guidelines. The prevalence and types of UREs were estimated. Results: Of the 2121 children enumerated, 1893 were examined, yielding a response rate of 89.3%. The prevalence of UREs was 34.9% (95% CI = 32.8%-37.1%), with significant differences in different age groups. The prevalence of astigmatism (25.3%) was higher compared to that of anisometropia (7.4%), hypermetropia (1.5%), and myopia (0.7%). Risk of uncorrected refractive error was positively associated with age, and this was noted in astigmatism, myopia, and anisometropia. In addition, the risk of hypermetropia was associated with boys and that of myopia was associated with girls. Conclusions: The prevalence of UREs, particularly astigmatism, was high among children aged 3-10 years in Medina, with significant age differences. Vision screening programs targeting kindergarten and primary schoolchildren are crucial to lessen the risk of preventable visual impairment due to UREs.
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Althomali TA. Relative Proportion Of Different Types Of Refractive Errors In Subjects Seeking Laser Vision Correction. Open Ophthalmol J 2018; 12:53-62. [PMID: 29872484 PMCID: PMC5958297 DOI: 10.2174/1874364101812010053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 02/15/2018] [Accepted: 04/14/2018] [Indexed: 11/29/2022] Open
Abstract
Background: Refractive errors are a form of optical defect affecting more than 2.3 billion people worldwide. As refractive errors are a major contributor of mild to moderate vision impairment, assessment of their relative proportion would be helpful in the strategic planning of health programs. Purpose: To determine the pattern of the relative proportion of types of refractive errors among the adult candidates seeking laser assisted refractive correction in a private clinic setting in Saudi Arabia. Methods: The clinical charts of 687 patients (1374 eyes) with mean age 27.6 ± 7.5 years who desired laser vision correction and underwent a pre-LASIK work-up were reviewed retrospectively. Refractive errors were classified as myopia, hyperopia and astigmatism. Manifest refraction spherical equivalent (MRSE) was applied to define refractive errors. Outcome Measures: Distribution percentage of different types of refractive errors; myopia, hyperopia and astigmatism. Results: The mean spherical equivalent for 1374 eyes was -3.11 ± 2.88 D. Of the total 1374 eyes, 91.8% (n = 1262) eyes had myopia, 4.7% (n = 65) eyes had hyperopia and 3.4% (n = 47) had emmetropia with astigmatism. Distribution percentage of astigmatism (cylinder error of ≥ 0.50 D) was 78.5% (1078/1374 eyes); of which % 69.1% (994/1374) had low to moderate astigmatism and 9.4% (129/1374) had high astigmatism. Conclusion and Relevance: Of the adult candidates seeking laser refractive correction in a private setting in Saudi Arabia, myopia represented greatest burden with more than 90% myopic eyes, compared to hyperopia in nearly 5% eyes. Astigmatism was present in more than 78% eyes.
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Aldebasi YH, Ahmed MI, Monaco WA. Are optometrists necessary in primary health care centres in Saudi Arabia? AFRICAN VISION AND EYE HEALTH 2018. [DOI: 10.4102/aveh.v77i1.402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Purpose: To determine the prevalence and visual characteristics of patients seen by optometrists and ophthalmologists in Saudi Arabian public hospitals. This model will demonstrate the efficacy, safety and effectiveness of optometrists as the primary point of contact for eye care in primary health care centres.Methods: A retrospective, analytical, record-based study of patients in 10 hospitals in Saudi Arabia was conducted over a period of 6 months. The hospitals were located in 3 of 14 provinces in Saudi Arabia. The current policy is that ophthalmologists be the first point of contact for patients in all hospitals. Ophthalmologists, optometrists and nurses collected the data using a predesigned data collection sheet (Appendix 1) which was divided into four sections – basic data, ocular information, ocular diagnosis and intervention. The pattern of patient examination in the eye clinics in public hospitals was analysed. Additionally, patients’ age, gender, nationality, symptoms, diagnosis and treatment were obtained from their medical records and considered for analysis. Diagnosis and treatment were classified by the scope of practice of optometrists and ophthalmologists: refraction, dispensing, rehabilitation of conditions of the visual system, detection, diagnosis and management of ocular diseases and referral to sub-specialty care were considered as optometric diagnoses. Prescription of medications and surgeries were classified as ophthalmologists’ diagnoses.Results: A total of 2601 patient records were reviewed from the pre-selected 10 public hospitals. There are approximately 415 public hospitals in Saudi Arabia. Refractive error was the most prevalent diagnosis; 54.5% of the patients were prescribed spectacles to relieve their symptoms of poor vision at distance and/or near. Around 35% of patients received treatment in the form of medications (20.6%), surgeries (11.4%), contact lenses (0.9%), orthoptics (1.8%) and low-vision devices (0.1%). About 0.6% patients were referred for major investigations such as ultrasonography, computed tomography and magnetic resonance imaging scans. No active intervention or treatment except observation was recommended for 7.7% of patients, and 2.4% of patients were referred to other sub-specialties. Based on the scope of practice and diagnostic criteria, the optometry discipline received the highest number of patients and can manage nearly 68% of patients registered for consultation; thus, they can take care of the predominant portion of eye-related problems in the outpatient services in the public hospital.Conclusion: This study clearly demonstrates that because of the disproportionate number of patients seeking care with refractive problems, optometrists can manage about two-thirds of patients visiting eye clinics of public hospitals. Thus, suggesting the need for optometrists as initial point of contact in terms of eye care services in primary health care centres. This would minimise the work load and appointment delays in public hospitals. This model will also enhance the early detection of vision-threatening eye conditions and assure appropriate referral to prevent future complications.
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Alsaqr AM, Ibrahim G, Sharha AA, Fagehi R. Investigating the Visual Status Of Preschool Children in Riyadh, Saudi Arabia. Middle East Afr J Ophthalmol 2018; 24:190-194. [PMID: 29422753 PMCID: PMC5793450 DOI: 10.4103/meajo.meajo_123_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE: The purpose of the study was to explore the vision status of preschool children aged 3–6 years in Al Riyadh and to identify children at risk of amblyopia. MATERIALS AND METHODS: This was a cross-sectional population-based study. Visual acuity (VA) was measured using 15-line Lea symbols, refractive error was assessed using the Mohindra near retinoscopy technique, and peak contrast sensitivity (CS) was measured with the aid of the numerical CS test. We recruited 335 children, with their parents' written consent, from 14 kindergartens. RESULTS: A total of 335 children were recruited; 42 children (13%) exhibited reduced VA (Median [interquartile ranges (IQRs)], 0.00 [0.01]); most were emmetropic (87.7%). Myopia (4.2%), hyperopia (8.1%), and astigmatism (20%) were also observed. Most children had normal CSs. About 14% of children were at risk of amblyopia. It has been observed that 26% of families have some kind of refractive error. CONCLUSIONS: It is important to perform vision screening of preschoolers. Early detection of abnormalities in refractive errors could help to minimize the effect of visual impairment.
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Affiliation(s)
- Ali M Alsaqr
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Ghayda'a Ibrahim
- Department of Ophthalmology, Optometry Division, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Ali Abu Sharha
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Raied Fagehi
- Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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Global and regional estimates of prevalence of refractive errors: Systematic review and meta-analysis. J Curr Ophthalmol 2017; 30:3-22. [PMID: 29564404 PMCID: PMC5859285 DOI: 10.1016/j.joco.2017.08.009] [Citation(s) in RCA: 200] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 08/01/2017] [Accepted: 08/24/2017] [Indexed: 11/22/2022] Open
Abstract
Purpose The aim of the study was a systematic review of refractive errors across the world according to the WHO regions. Methods To extract articles on the prevalence of refractive errors for this meta-analysis, international databases were searched from 1990 to 2016. The results of the retrieved studies were merged using a random effect model and reported as estimated pool prevalence (EPP) with 95% confidence interval (CI). Results In children, the EPP of myopia, hyperopia, and astigmatism was 11.7% (95% CI: 10.5–13.0), 4.6% (95% CI: 3.9–5.2), and 14.9% (95% CI: 12.7–17.1), respectively. The EPP of myopia ranged from 4.9% (95% CI: 1.6–8.1) in South–East Asia to 18.2% (95% CI: 10.9–25.5) in the Western Pacific region, the EPP of hyperopia ranged from 2.2% (95% CI: 1.2–3.3) in South-East Asia to 14.3% (95% CI: 13.4–15.2) in the Americas, and the EPP of astigmatism ranged from 9.8% in South-East Asia to 27.2% in the Americas. In adults, the EPP of myopia, hyperopia, and astigmatism was 26.5% (95% CI: 23.4–29.6), 30.9% (95% CI: 26.2–35.6), and 40.4% (95% CI: 34.3–46.6), respectively. The EPP of myopia ranged from 16.2% (95% CI: 15.6–16.8) in the Americas to 32.9% (95% CI: 25.1–40.7) in South-East Asia, the EPP of hyperopia ranged from 23.1% (95% CI: 6.1%–40.2%) in Europe to 38.6% (95% CI: 22.4–54.8) in Africa and 37.2% (95% CI: 25.3–49) in the Americas, and the EPP of astigmatism ranged from 11.4% (95% CI: 2.1–20.7) in Africa to 45.6% (95% CI: 44.1–47.1) in the Americas and 44.8% (95% CI: 36.6–53.1) in South-East Asia. The results of meta-regression showed that the prevalence of myopia increased from 1993 (10.4%) to 2016 (34.2%) (P = 0.097). Conclusion This report showed that astigmatism was the most common refractive errors in children and adults followed by hyperopia and myopia. The highest prevalence of myopia and astigmatism was seen in South-East Asian adults. The highest prevalence of hyperopia in children and adults was seen in the Americas.
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Adhisesha Reddy P, Bassett K. Visual acuity screening in schools: A systematic review of alternate screening methods. COGENT MEDICINE 2017. [DOI: 10.1080/2331205x.2017.1371103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Priya Adhisesha Reddy
- Aravind Eye Hospital and Post-Graduate Institute of Ophthalmology, Cuddalore Main Road, Thavalakuppam, Pondicherry 605007, India
- Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Ken Bassett
- Program Director, Seva Canada
- Department of Ophthalmology, University of British Columbia, Vancouver, Canada
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Atowa UC, Munsamy AJ, Wajuihian SO. Prevalence and risk factors for myopia among school children in Aba, Nigeria. AFRICAN VISION AND EYE HEALTH 2017. [DOI: 10.4102/aveh.v76i1.369] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Aim: To study the prevalence of myopia among school children in Aba, Nigeria.Methods: This cross-sectional study was conducted in public and private (primary and secondary) schools. A multi-stage random sampling technique was used for selecting participants aged between 8 and 15 years from 12 schools in Aba, Nigeria. Data were analysed for 1197 children who underwent a comprehensive eye examination. The children were divided according to the following criteria: age groups (group 1 [8–11 years] or group 2 [12–15 years]), gender (male or female), level of education (primary or secondary) and type of school (public or private). Myopia was defined as spherical equivalent refraction (SER) ≤ -0.50 D in the poorer eye.Results: The prevalence of myopia was estimated to be 2.7%. Of the 96 children with refractive error, 78.1% were uncorrected. In using logistic regression analysis, risk of developing myopia was associated with older age groups (odds ratio [OR]: 1.20; 95% confidence interval [CI], 0.16–9.11; p < 0.010) and higher level of education (OR: 1.73; 95% CI, 1.05–2.86; p < 0.030). There was no significant difference in myopia prevalence between male and female children (p = 0.89).Conclusion: Although the prevalence of myopia and overall prevalence of refractive error in school children in Aba were low, the high prevalence of uncorrected refractive error is a significant public health problem. An effective and sustainable children’s vision screening programme is needed to prevent visual impairment and blindness.
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Ertekin YH, Tekin M, Uludag A, Arikan S, Sahin EM. Vision screening in children: Is 7-9 years of age a threshold for visual impairment? Pak J Med Sci 2016; 32:1194-1198. [PMID: 27882020 PMCID: PMC5103132 DOI: 10.12669/pjms.325.10367] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE The present study aimed to assess the prevalence of decreased visual acuity, strabismus, and spectacle wear in children aged 5 to 13 years. METHODS A cross-sectional study was performed in primary education schools. A total of 1938 participants, including 940 females (48.5%) and 998 males (51.5%) with a mean age 8.96 ± 2.31 (5-13 years old), were screened. The comparisons were performed with gender, age, and age groups. The children attended to vision screening were assigned to three age groups as 5-6 years, 7-9 years, and 10-13 years. RESULTS The prevalence of the parameters was detected as decreased visual acuity 12.4%, strabismus 2.2%, and spectacle wear 6.9%. The prevalence of decreased visual acuity was significantly higher in girls and in children aged 7-9 years old (p = 0.013, p < 0.001). The prevalence of spectacle wear was significantly higher in girls and in children aged 7-9 years old (p = 0.019, p < 0.001). There was a visual acuity decrease in 33 of 106 (31.1%) children despite wearing own spectacle. There was no significant difference among three age groups for strabismus. CONCLUSION Increased prevalence of decreased visual acuity, as well as the higher frequency of spectacle wear in children at ages of 7-9 years old may point out a threshold for visual impairment.
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Affiliation(s)
- Yusuf Haydar Ertekin
- Yusuf Haydar Ertekin, Department of Family Medicine, Canakkale Onsekiz Mart University School of Medicine, Canakkale 17042, Turkey
| | - Murat Tekin
- Murat Tekin, Department of Family Medicine, Canakkale Onsekiz Mart University School of Medicine, Canakkale 17042, Turkey
| | - Aysegul Uludag
- Aysegul Uludag, Department of Family Medicine, Canakkale Onsekiz Mart University School of Medicine, Canakkale 17042, Turkey
| | - Sedat Arikan
- Sedat Arikan, Department of Ophthalmology, Canakkale Onsekiz Mart University School of Medicine, Canakkale 17042, Turkey
| | - Erkan Melih Sahin
- Erkan Melih Sahin, Department of Family Medicine, Canakkale Onsekiz Mart University School of Medicine, Canakkale 17042, Turkey
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Alrasheed SH, Naidoo KS, Clarke-Farr PC. Prevalence of visual impairment and refractive error in school-aged children in South Darfur State of Sudan. AFRICAN VISION AND EYE HEALTH 2016. [DOI: 10.4102/aveh.v75i1.355] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Background: Global estimates suggest there are almost 19 million visually impaired children worldwide, the major cause being uncorrected refractive error (RE).Aim: To assess the prevalence of visual impairment (VI) and RE among Sudanese school-aged children.Setting: Eight randomly selected primary schools from 21 districts in South Darfur State of Sudan were involved.Methods: A school-based cross-sectional study of RE and VI in primary schoolchildren from grades 1 to 8 (children aged 6–15 years) was investigated. A Refractive Error Study in Children (RESC) protocol was implemented to determine the prevalence of RE and VI in these schoolaged children. Participants were enrolled through stratified multistage cluster sampling of four all-male and four all-female primary schools from South Darfur State of Sudan. Examination procedures followed the RESC protocol, which included visual acuity (VA) measurements, binocular vision assessments, retinoscopy and autorefraction under cycloplegia, as well as examination of the external eye, anterior-segment, media and fundus.Results: A total of 1775 children were invited to participate in the study and 1678 were examined resulting in a participation rate of 94.5%. The findings indicated that the prevalence of uncorrected, presenting and best-corrected VA of 6/12 or worse was 6.4% (95% confidence interval [CI], 4.9–7.9), 4.4% (95% CI, 2.9–5.9) and 1.2% (95% CI, 0.3–2.7) respectively. RE was the cause of VI in 57% of participants, retinal disorders in 13.1%, amblyopia in 5.6%, corneal opacity in 0.9%, cataract in 3.7%, with the causes of reduced vision undetermined in 10.3% and various other causes contributed 9.3%. External and anterior-segment abnormalities were observed in 10.2% of children. This was mainly allergic conjunctivitis (5.3%) followed by bacterial and viral conjunctivitis (4.2%). The prevalence of myopia (≥|-0.50 D|) in one or both eyes was 6.8% (95% CI, 5.3–8.3), hypermetropia (≥ 2 D) was noted in 1.9% (95% CI, 0.4–3.4) and astigmatism (≥|-0.75 D|) prevailed in 2.5% (95% CI, 1.0–4.0). Prevalence of VI among schoolaged children were associated with the children’s age and grade levels (p = 0.00) but was not correlated with gender (p = 0.224). Prevalence of RE among school-aged children was significantly correlated with age and grade levels (p = 0.00). No significant correlation was found between gender and prevalence of RE (p = 0.833). The prevalence of VI because of myopia was associated with increasing grade levels and also the childhood age (p = 0.023), but there was no significant difference in the prevalence of VI because of myopia between male and female children.Conclusion: Uncorrected RE was a major cause of VI among children in the South Darfur State. There is thus a critical need for developing a comprehensive child eye care plan focusing on the reduction of uncorrected RE through collaboration between key stakeholders and government.
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