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Yelagondula VK, Marmamula S, Banerjee S, Khanna RC. Near vision impairment and effective refractive error coverage for near vision in Andhra Pradesh, India - The Akividu Visual Impairment Study (AVIS). Clin Exp Optom 2024:1-6. [PMID: 38616051 DOI: 10.1080/08164622.2024.2333769] [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: 12/05/2022] [Accepted: 03/17/2024] [Indexed: 04/16/2024] Open
Abstract
CLINICAL RELEVANCE Near Vision Impairment (NVI) is common in developing countries. A substantial proportion of NVI can be addressed by providing spectacles. Innovative eye care programmes are needed to address NVI. Population-based epidemiological studies can provide vital data to plan such eye care service delivery models. BACKGROUND To report the prevalence of NVI and effective Refractive Error Coverage (eREC) for near vision in West Godavari and Krishna districts in Andhra Pradesh, south India. METHODS A population-based cross-sectional study was carried out using a Rapid Assessment of Visual Impairment methodology. Presenting and pinhole distance visual acuity were assessed followed by near vision assessment using a N notation chart at a fixed distance of 40 cm. If the presenting near vision was worse than N8, the best corrected near visual acuity was recorded with age appropriate near vision correction. NVI was defined as presenting near vision worse than N8 among those without distance vision impairment (6/18 or better in the better eye). Effective Refractive Error Coverage for near was calculated as the proportion of individuals with an adequate correction to the total participants, including those with inadequate, adequate, and no correction for near vision. RESULTS Data of 2,228 participants aged ≥40 years were analysed. The mean age of these participants was 54.0 ± 10.4 years; 53.8% were women; 44.5% had no formal education. The prevalence of NVI was 27.1% (95% CI: 25.2-29.0%). NVI significantly associated with 70 and above age group (adjusted OR: 1.97; 95% CI: 1.45-3.70). Participants with formal education had lower odds for NVI (adjusted OR: 0.75; 95 % CI: 0.68-0.83). The eREC for near vision was 48.0%. CONCLUSION NVI affects over a quarter of people aged ≥40 years in the West Godavari and Krishna districts of Andhra Pradesh. However, eREC is under 50% and there is scope for improving this by establishing eye care services to achieve universal eye health for all.
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Affiliation(s)
- Vijay Kumar Yelagondula
- Brien Holden Institute of Optometry and Vision Sciences, L V Prasad Eye Institute, Hyderabad, India
| | - Srinivas Marmamula
- Brien Holden Institute of Optometry and Vision Sciences, L V Prasad Eye Institute, Hyderabad, India
- Allen Foster Community Eye Health Research Centre, L V Prasad Eye Institute, Hyderabad, India
| | - Saptak Banerjee
- Brien Holden Institute of Optometry and Vision Sciences, L V Prasad Eye Institute, Hyderabad, India
| | - Rohit C Khanna
- Allen Foster Community Eye Health Research Centre, L V Prasad Eye Institute, Hyderabad, India
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Effect of Myopic Undercorrection on Habitual Reading Distance in Schoolchildren: The Hong Kong Children Eye Study. Ophthalmol Ther 2023; 12:925-938. [PMID: 36574139 PMCID: PMC10011230 DOI: 10.1007/s40123-022-00628-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/28/2022] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION This study aimed to evaluate the habitual reading distance among non-myopic children and also myopic children with undercorrection and with full correction. METHODS This was a population-based cross-sectional study with a total of 2363 children aged 6-8 years who were recruited from the Hong Kong Children Eye Study. Cycloplegic autorefraction, subjective refraction, habitual visual acuity, and best corrected visual acuity were measured. The entire reading process (9 min) was recorded using a hidden video camera placed 5 m away from the reading desk. Reading distances were taken at 6, 7, 8, and 9 min after the child began reading and were measured using a customized computer program developed in MATLAB. The main outcome was the association of habitual reading distances with refraction status. Habitual reading distances of children were documented via video camera footage. RESULTS The habitual reading distances of undercorrected myopic children (23.37 ± 4.31 cm) were the shortest when compared to non-myopic children (24.20 ± 4.73 cm, P = 0.002) and fully corrected myopic children (24.81 ± 5.21 cm, P < 0.001), while there was no significant difference between the last two children groups (P = 0.17). A shorter reading distance was associated with myopia (OR 1.67; 95% CI 1.11-2.51; P = 0.013) after adjusting for age, sex, height, near work time, outdoor time, and parental myopia. The association of reading distance with myopia did not hold after undercorrected myopic children were excluded (OR 0.97, 95% CI 0.55-1.73; P = 0.92). A shorter reading distance correlated with poorer vision under habitual correction (β = - 0.003, P < 0.001). CONCLUSION A shorter reading distance was present among undercorrected myopic children. Myopia undercorrection is not recommended as a strategy for slowing myopic progression.
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Guan H, Zhang Y, Wang Z, Chen X, Xue J, Ding Y. The prevalence and county-level socioeconomic correlates of visual impairment and glasses ownership among rural students in Western China. Front Public Health 2023; 11:1069793. [PMID: 36741945 PMCID: PMC9892754 DOI: 10.3389/fpubh.2023.1069793] [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] [Received: 10/14/2022] [Accepted: 01/02/2023] [Indexed: 01/20/2023] Open
Abstract
Objectives Vision health has been a major issue in public health care. The vision problems of children in rural China are of particular concern. Effective policies for children's vision health should consider the heterogeneity of individual health levels and regional differences in healthcare services. This study systematically explored the relationship of student visual impairment and glasses ownership with county-level socioeconomic status (namely, county-level per capita GDP, population density and industrial structure) in rural China. Methods The study sample included 99,670 students in grades 4-9 from 445 schools in 13 counties in Shaanxi Province. From 2014 to 2020, students took school-based vision screening tests and completed sociodemographic questionnaires. Multivariate regressions were used for empirical analysis. Results The prevalence of visual impairment was 30.4% in the total sample, and the rate of visual impairment in girls (34.3%) was higher than that in boys (27.0%). Among visually impaired students, the rate of glasses ownership was only 39.7%, with girls (40.6%) higher than boys (38.8%). The study also found that the visual impairment was significantly correlated with county-level average income, population density and industrial structure, and the glasses ownership was significantly correlated with population density and industrial structure (all p < 0.001). Conclusions The study found that the county-level socioeconomic status was positively and significantly correlated with visual impairment and glasses ownership, respectively. The vision health management services for students should be jointly carried out by the education, medical and public health departments, and additional investment is needed to increase the accessibility and affordability of vision care services, with special focus on poor regions and disadvantaged groups, so as to narrow the gap in vision health services.
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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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Malhotra S, Vashist P, Kalaivani M, Rath R, Gupta N, Gupta S, Prasad M, Sathiyamoorthy R. Prevalence of presbyopia, spectacles coverage and barriers for unmet need among adult population of rural Jhajjar, Haryana. J Family Med Prim Care 2022; 11:287-293. [PMID: 35309602 PMCID: PMC8930150 DOI: 10.4103/jfmpc.jfmpc_1148_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 11/24/2021] [Accepted: 12/03/2021] [Indexed: 11/17/2022] Open
Abstract
Background: Presbyopia is a major cause for near visual impairment among adults. Presbyopia induced visual impairment can be corrected easily by spectacles. We aimed to study the prevalence of presbyopia among adults aged ≥35 years and spectacles coverage among them. We also studied the unmet need for presbyopia along with the barriers to uptake of services. Methods: This is a population-based cross-sectional study conducted among adults aged ≥35 years in a rural district of Haryana. Near vision assessment and semistructured interview schedule were administered by a team of trained ophthalmic assistant, social worker and health assistant. Results: A total of 3832 adults aged ≥35 years were enumerated, from which 3246 (84.7%) were examined. Prevalence of presbyopia was found to be 42.9% (95% confidence interval 41.2–44.6). Participants with increasing age, literacy and women had higher prevalence, and those that were employed and belonged to below poverty line economic status had lower prevalence of presbyopia. Spectacles coverage among presbyopes was found to be 25.8%. There was an inverse association between unmet need for presbyopia and women, increasing education status and office work. Lack of felt need and personal reasons were the most common barriers for unmet need due to presbyopia. Conclusions: There is high prevalence of presbyopia among adult population, with spectacles coverage being low. Awareness activities along with affordable, accessible and socially acceptable services for those affected with presbyopia would be one of the key components of management.
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Gbessemehlan A, Helmer C, Delcourt C, Boumediene F, Ndamba-Bandzouzi B, Mbelesso P, Samba H, Kehoua G, Désormais I, Lacroix P, Aboyans V, Dartigues JF, Houinato D, Preux PM, Guerchet M. Cardiovascular Health and Near Visual Impairment Among Older Adults in the Republic of Congo: A Population-Based Study. J Gerontol A Biol Sci Med Sci 2021; 76:842-850. [PMID: 33438029 DOI: 10.1093/gerona/glaa304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Visual impairment (VI) and determinants of poor cardiovascular health are very common in Sub-Saharan Africa. However, we do not know whether these determinants are associated with VI among older adults in this region. This study aimed at investigating the association between the determinants of poor cardiovascular health and near VI among older adults living in Congo. METHODS Participants were Congolese adults aged 65 or older included in Epidemiology of Dementia in Central Africa-Follow-up population-based cohort. Near VI was defined as visual acuity less than 20/40 measured at 30 cm. Associations between determinants of poor cardiovascular health collected at baseline and near visual acuity measured at first follow-up were investigated using multivariable logistic regression models. RESULTS Among the 549 participants included, 378 (68.8%; 95% confidence interval [CI]: 64.9%-72.7%]) had near VI. Of the determinants of poor cardiovascular health explored, we found that having high body mass index of at least 25 kg/m2 (odds ratio [OR] = 2.15; 95% CI: 1.25-3.68), diabetes (OR = 2.12; 95% CI: 1.06-4.25) and hypertension (OR = 1.65; 95% CI: 1.02-2.64) were independently associated with near VI. CONCLUSIONS Several determinants of poor cardiovascular health were associated with near VI in this population. This study suggests that promoting good cardiovascular health could represent a target for VI prevention among older adults.
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Affiliation(s)
- Antoine Gbessemehlan
- INSERM, Univ. Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France.,Faculty of Health Sciences, Laboratory of Chronic and Neurologic Diseases Epidemiology, LEMACEN, University of Abomey-Calavi, Cotonou, Benin
| | - Catherine Helmer
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, France
| | - Cécile Delcourt
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, France
| | - Farid Boumediene
- INSERM, Univ. Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France
| | | | - Pascal Mbelesso
- Department of Neurology, Amitié Hospital, Bangui, Central African Republic
| | - Harielle Samba
- INSERM, Univ. Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France
| | - Gilles Kehoua
- INSERM, Univ. Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France
| | - Ileana Désormais
- INSERM, Univ. Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France.,Department of Thoracic and Cardiovascular Surgery and Angiology, Dupuytren University Hospital, Limoges, France
| | - Philippe Lacroix
- INSERM, Univ. Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France.,Department of Thoracic and Cardiovascular Surgery and Angiology, Dupuytren University Hospital, Limoges, France
| | - Victor Aboyans
- INSERM, Univ. Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France.,Department of Cardiology, Dupuytren University Hospital, Limoges, France
| | | | - Dismand Houinato
- INSERM, Univ. Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France.,Faculty of Health Sciences, Laboratory of Chronic and Neurologic Diseases Epidemiology, LEMACEN, University of Abomey-Calavi, Cotonou, Benin
| | - Pierre-Marie Preux
- INSERM, Univ. Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France
| | - Maëlenn Guerchet
- INSERM, Univ. Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France
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Sadamatsu Y, Ono K, Hiratsuka Y, Takesue A, Tano T, Yamada M, Otani K, Sekiguchi M, Konno S, Kikuchi S, Fukuhara S, Murakami A. Prevalence and factors associated with uncorrected presbyopia in a rural population of Japan: the Locomotive Syndrome and Health Outcome in Aizu Cohort Study. Jpn J Ophthalmol 2021; 65:724-730. [PMID: 34374906 DOI: 10.1007/s10384-021-00863-3] [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: 01/26/2021] [Accepted: 06/22/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE To investigate the prevalence and factors associated with uncorrected presbyopia among rural community dwellers in Japan. STUDY DESIGN A population-based cross-sectional study was conducted in 2011 among community dwellers aged 40-74 years who received specific health checkups in Minamiaizu and Tadami, Fukushima Prefecture, Japan. METHODS Uncorrected presbyopia was considered as when the distance-corrected visual acuity in the better eye was ≥0.5 and the near-presenting visual acuity in the better eye was <0.4, regardless of distance refractive status. Multiple logistic regression analysis was employed to calculate the odds ratios (ORs) for uncorrected presbyopia and to adjust for possible confounders. RESULTS A total of 2054 individuals participated in the specific health checkups. In the 1156 individuals (response rate: 56.28%) analyzed in the study, the mean (SD) age was 63.0 (8.7) years, the percentage of women was higher (57.87%), and the prevalence of uncorrected presbyopia was 26.38% (95% CI 23.86%-29.03%). Multivariate analysis revealed that the factors associated with uncorrected presbyopia were older age (adjusted OR: 1.054 [95% CI: 1.034-1.075]), female sex (adjusted OR: 1.388 [95% CI: 1.006-1.915]), and distance-presenting vision impairment (adjusted OR: 2.651 [95% CI: 1.697-4.143]). CONCLUSION Approximately one-quarter of the participants in this study from a rural population of Japan did not have adequate near vision. It is recommended that a public health intervention should be enacted to correct presbyopia, especially in the older age group, women, and those with uncorrected refractive errors.
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Affiliation(s)
- Yoshinari Sadamatsu
- Department of Ophthalmology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo Bunkyo-ku, Tokyo, 113-8421, Japan.,Sadamatsu Eye Clinic, Saitama, Japan
| | - Koichi Ono
- Department of Ophthalmology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Yoshimune Hiratsuka
- Department of Ophthalmology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Atsuhide Takesue
- Department of Ophthalmology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Takatoshi Tano
- Department of Ophthalmology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo Bunkyo-ku, Tokyo, 113-8421, Japan.,Tano Eye Clinic, Shizuoka, Japan
| | - Masakazu Yamada
- Department of Ophthalmology, Kyorin University School of Medicine, Tokyo, Japan
| | - Koji Otani
- Department of Orthopaedic Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Miho Sekiguchi
- Department of Orthopaedic Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Shinichi Konno
- Department of Orthopaedic Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Shinichi Kikuchi
- Department of Orthopaedic Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Shunichi Fukuhara
- Section of Clinical Epidemiology, Department of Community Medicine, School of Medicine, Kyoto University, Kyoto, Japan.,Shirakawa STAR in General Medicine, Fukushima Medical University, Fukushima, Japan.,Department of Health Policy and Management, Johns Hopkins University, Baltimore, USA
| | - Akira Murakami
- Department of Ophthalmology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo Bunkyo-ku, Tokyo, 113-8421, Japan.,Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
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Marmamula S, Barrenkala NR, Khanna RC, Challa R, Bhakki M, Kumbham TR, Modepalli SB, Yellapragada R, Friedman DS. Near vision impairment among the elderly in residential care-the Hyderabad Ocular Morbidity in Elderly Study (HOMES). Eye (Lond) 2021; 35:2310-2315. [PMID: 33159176 PMCID: PMC8302663 DOI: 10.1038/s41433-020-01243-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 09/10/2020] [Accepted: 10/16/2020] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND/OBJECTIVE To report on the prevalence and risk factors for near vision impairment (NVI) among the elderly in residential care in Telangana State in India. METHODS Individuals aged ≥60 years were recruited from 41 'home for the aged' centres in Hyderabad, India. All participants had complete eye examinations including presenting and best-corrected visual acuity assessment for distance and near. NVI was defined as binocular presenting near vision worse than N8 (6/15) among those who had a normal presenting distance visual acuity of 6/18 in the better eye. RESULTS Of the 826 participants, the mean age was 74.4 years (standard deviation-8.4 years), 525 (63.6%) were women, 715 (86.6%) had at least school education. The prevalence of NVI was 51.2% (95% CI: 47.7-54.7) based on presenting vision. On applying multiple logistic regression analysis, the odds of NVI were higher in 80 years and older age (OR: 2.17; 95% CI: 3.44-13.6). Those with school education (OR: 0.58: 95% CI: 0.36-0.94) and higher education (OR: 0.38; 95% CI: 0.21-0.69) had lower odds for NVI. Similarly, those with self-reported diabetes (OR: 0.69; 95% CI: 0.49-0.97), those using spectacles (OR: 0.09; 95% CI: 0.05-0.16), and those who had undergone cataract surgery (OR: 0.51; 95% CI: 0.36-0.74) had lower odds for NVI. CONCLUSIONS NVI was common among the elderly in residential care in homes for the aged in Hyderabad, India. As most of this NVI is correctable, a routine screening programme and dispensing of spectacles can be undertaken to address this vision loss.
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Affiliation(s)
- Srinivas Marmamula
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India.
- Brien Holden Institute of Optometry and Vision Science, L V Prasad Eye Institute, Hyderabad, India.
- Wellcome Trust/Department of Biotechnology India Alliance, L V Prasad Eye Institute, Hyderabad, India.
- School of Optometry and Vision Science, University of New South Wales, Sydney, NSW, Australia.
| | - Navya Rekha Barrenkala
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
| | - Rohit C Khanna
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
- School of Optometry and Vision Science, University of New South Wales, Sydney, NSW, Australia
| | - Rajesh Challa
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
| | - Madhuri Bhakki
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
| | - Thirupathi Reddy Kumbham
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
| | - Satya Brahmanandam Modepalli
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
| | - Ratnakar Yellapragada
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
| | - David S Friedman
- Harvard Medical School Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
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Marmamula S, Keeffe J, Challa R, Mohd J, Khanna RC. Near-vision impairment and effective near-vision spectacle coverage in two districts in Telangana, India: a population-based cross-sectional study. BMJ Open 2021; 11:e047131. [PMID: 33820793 PMCID: PMC8030469 DOI: 10.1136/bmjopen-2020-047131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES To investigate the prevalence of near-vision impairment (NVI) and effective spectacle coverage for near vision in those aged ≥40 years in Khammam and Warangal district in Telangana, India. DESIGN A population-based cross-sectional study. SETTING Khammam and Warangal district in Telangana, India. PARTICIPANTS Of 6000 people enumerated, 5357 were examined (89%). 4526 participants without distance vision impairment were included in the analysis. MAIN OUTCOME MEASURES The study teams visited selected households and conducted eye examinations. NVI was defined as binocular presenting near vision worse than N6. 'Unmet need' was deemed to be present if the unaided near vision was worse than N6 and improved to N6 with near correction among the participants who did not have spectacles for near vision. 'Met need' was deemed to be present when unaided near vision was worse than N6 but improving to N6 with their spectacles. The 'undermet need' was deemed to be present when aided near vision was worse than N6 but improved to N6 with correction. Based on these definitions, e-near-vision coverage (%) is calculated as follows: e-NVC (%)=met need/(met need+undermet need+unmet need) × 100. RESULTS The mean age was 53.5 years (SD: 10.8 years), 2534/4526 (55.8%) were women, 1819/4526 (41.8%) had at least primary school education and 2368/4526 (52.3%) were from the Khammam district. The prevalence of NVI was 55.8% (95% CI 72.5 to 75.1; n=3343). Overall, the e-NVC (%) was 31.8%. It was 40.0% in Khammam and 23.2% in Warangal. CONCLUSION NVI is common in Khammam and Warangal districts in Telangana with inadequate effective near-vision coverage. Effective service delivery models are needed to reach out and provide services to address NVI to achieve universal eye health coverage in the region.
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Affiliation(s)
- Srinivas Marmamula
- Brien Holden Institute of Optometry and Vision Science, L V Prasad Eye Institute, Hyderabad, India
- Wellcome Trust, Department of Biotechnology India Alliance, L V Prasad Eye Institute, Hyderabad, India
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
| | - Jill Keeffe
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
| | - Rajesh Challa
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
| | - Javed Mohd
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
| | - Rohit C Khanna
- School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
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Marmamula S. The Basic Eye Screening Test (BEST) for primary level eye screening by grassroot level workers in India. Indian J Ophthalmol 2020; 68:408-409. [PMID: 31957740 PMCID: PMC7003602 DOI: 10.4103/ijo.ijo_1554_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Srinivas Marmamula
- Allen Foster Community Eye Health Research Centre, Gullapalli Pratibha Rao International Centre for Advancement of Rural Eye care, Brien Holden Institute of Optometry and Vision Science, Hyderabad, India; School of Optometry and Vision Science, University of New South Wales, Sydney, Australia; Wellcome Trust /DBT India Alliance Fellow, L V Prasad Eye Institute, Hyderabad, India
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11
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Berdahl J, Bala C, Dhariwal M, Lemp-Hull J, Thakker D, Jawla S. Patient and Economic Burden of Presbyopia: A Systematic Literature Review. Clin Ophthalmol 2020; 14:3439-3450. [PMID: 33116396 PMCID: PMC7588278 DOI: 10.2147/opth.s269597] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 09/22/2020] [Indexed: 12/04/2022] Open
Abstract
Purpose The objective of this systematic literature review (SLR) was to collate, report, and critique published evidence related to epidemiology and patient and economic burden of presbyopia. Patients and Methods A systematic literature search was conducted in MEDLINE®, Embase®, and Cochrane Library databases from the time of inception through October 2018 using Cochrane methodology. Studies published in English language reporting on epidemiology and patient and economic burden of presbyopia were included. Results Initial systematic literature search yielded 2,228 citations, of which 55 met the inclusion criteria (epidemiology, 44; patient burden, 14; economic burden, 1) and were included in this review. Globally, 1.09 billion people are estimated to be affected by presbyopia. The reported presbyopia prevalence varied across regions and by age groups, with the highest prevalence of 90% reported in the Latin America region in adults ≥35 years. Presbyopic patients report up to 22% decrease in quality-of-life (QoL) score, and up to 80% patients with uncorrected presbyopia report difficulty in performing near-vision related tasks. About 12% of presbyopes required help in performing routine activities, and these visual limitations reportedly induce distress and low self-esteem in presbyopia patients. Uncorrected presbyopia led to a 2-fold increased difficulty in near-vision-related tasks and a >8-fold increased difficulty in very demanding near-vision-related tasks. Further, uncorrected presbyopia leads to a decrement in patients’ QoL, evident by the low utility values reported in the literature. Annual global productivity losses due to uncorrected and under-corrected presbyopia in working-age population (<50 years) were estimated at US$ 11 billion (0.016% of the global domestic product (GDP) in 2011, which increased to US$ 25.4 billion if all people aged <65 years were assumed to be productive. Conclusion Uncorrected presbyopia affects patients’ vision-related quality of life due to difficulty in performing near-vision-related tasks. In addition, un-/under-corrected presbyopia could lead to productivity losses in working-age adults.
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Affiliation(s)
| | - Chandra Bala
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Mukesh Dhariwal
- Global Health Economics & Outcomes Research, Alcon Vision LLC, Fort Worth, TX, USA
| | - Jessie Lemp-Hull
- Clinical Development and Medical Affairs, Alcon Vision LLC, Fort Worth, TX, USA
| | - Divyesh Thakker
- Patient Access Services, Novartis Healthcare Pvt Ltd., Hyderabad, Telangana, India
| | - Shantanu Jawla
- Patient Access Services, Novartis Healthcare Pvt Ltd., Hyderabad, Telangana, India
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Sheeladevi S, Seelam B, Nukella PB, Borah RR, Ali R, Keay L. Prevalence of refractive errors, uncorrected refractive error, and presbyopia in adults in India: A systematic review. Indian J Ophthalmol 2019; 67:583-592. [PMID: 31007213 PMCID: PMC6498913 DOI: 10.4103/ijo.ijo_1235_18] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose: The objective of this review is to estimate the prevalence of refractive errors, uncorrected refractive error (URE), and uncorrected presbyopia in adults aged ≥30 years in India. Methods: The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines were followed. A detailed literature search was performed to include all studies published from India from the year 1990 using the Cochrane Library, Medline, and Embase. Refractive error was defined by >0.50 D ametropia. URE was defined by presenting visual acuity (PVA) worse than 6/18 improving with pinhole or spectacle correction, and uncorrected presbyopia by near vision <N8 improving with correction in the absence of distance URE. Results: Fifteen studies were included from South India, one each from Western and Central India, and one study covered 15 states across India. The prevalence of RE of at least 0.50 D of spherical equivalent ametropia was 53.1% [(95% confidence interval (CI): 37.2–68.5), of which myopia and hyperopia was 27.7% and 22.9%, respectively. The prevalence of URE was 10.2% (95% CI: 6.9–14.8), but heterogeneity in these estimates was very high. The prevalence of uncorrected presbyopia was 33% (95% CI: 19.1–51.0). Conclusion: This review highlights the magnitude of refractive errors among adults in India. More studies are needed using standard methods in regions where there is a lack of information on UREs. Programs delivering spectacles for adults in India will need to primarily focus on reading glasses to correct presbyopia along with spectacles for hyperopia and myopia.
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Affiliation(s)
- Sethu Sheeladevi
- Division of Optometry and Visual Sciences, City University of London, London, UK
| | - Bharani Seelam
- Injury Division, The George Institute for Global Health; UNSW Sydney, Australia
| | | | | | | | - Lisa Keay
- Injury Division, The George Institute for Global Health; UNSW Sydney, Australia
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