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Aremu OO, Ugalahi MO, Olusanya BA, Oluleye TS. Functional Vision of Pseudophakic Children Attending a Pediatric Ophthalmology Clinic in Southwest Nigeria. J Pediatr Ophthalmol Strabismus 2024; 61:138-146. [PMID: 37882184 DOI: 10.3928/01913913-20231005-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
PURPOSE To determine the functional vision of pseudophakic children attending a child eye health tertiary facility in southwest Nigeria. METHODS A hospital-based descriptive study of pseudophakic children attending the Pediatric Ophthalmology outpatient clinic of a tertiary facility in southwest Nigeria was conducted between June and November 2021. Details of demography and clinical examination findings were obtained using a semi-structured questionnaire. Information about functional vision was obtained using the Pediatric Eye Questionnaire (PedEyeQ). Data obtained from the PedEyeQ were entered into a Rasch-calibrated PedEyeQ Excel response data sheet. Data analysis was done using Statistical Package for Social Sciences (SPSS) software version 22 (SPSS, Inc). RESULTS A total of 196 pseudophakic children were recruited. Their ages ranged from 2 to 16 years with a mean of 9.8 ± 3.4 years and there was a male-to-female ratio of 2.2:1. The median functional vision score of pseudophakic children across all age groups was 90.0. The functional vision scores were associated with the laterality of cataract, type of cataract, presence of comorbidities, visual acuity (distance and near) in the better eye, and number of surgeries. CONCLUSIONS The functional vision scores of pseudophakic children were low. Significant predictors of low functional vision scores include surgery for congenital cataract, low average family income, longer duration of time between surgery and recruitment into the study, and poorer best corrected visual acuity in the better eye. The routine assessment of functional vision should be considered an important aspect of pseudophakic children's eye care with a view toward optimizing psychological and social well-being. [J Pediatr Ophthalmol Strabismus. 2024;61(2):138-146.].
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Ghasemi Fard F, Mirzaie H, Hosseini SA, Riazi A, Ebadi A. Vision-related tasks in children with visual impairment: a multi-method study. Front Psychol 2023; 14:1180669. [PMID: 37519380 PMCID: PMC10374319 DOI: 10.3389/fpsyg.2023.1180669] [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: 03/07/2023] [Accepted: 06/20/2023] [Indexed: 08/01/2023] Open
Abstract
Objective Functional Vision (FV) is vital for the successful growth of children with visual impairment. However, tasks related to measuring FV have not been thoroughly studied for this population. To address this gap, this study seeks to establish a comprehensive set of vision-related tasks that consider both the difficulty levels of activities and the ages of children with visual impairment. Methods This study utilized a sequential multi-method design, including a scoping review, a qualitative content analysis, and a focus group. Firstly, a scoping review was conducted to identify vision-related tasks based on the literature. Then, to contextualize the vision-related tasks, a qualitative content analysis was carried out. Subsequently, a focus group was conducted to categorize the identified tasks based on their difficulty levels and the children's level of dependency. We utilized the directed content analysis method to analyze the data, using the occupational domain of the Occupational Therapy Practice Framework 4th edition (OTPF-4) as the primary framework. Results During the review phase, which included 22 studies, and the interview phase, which involved 16 participants, a total of 95 and 85 vision-related tasks were identified, respectively. These tasks were then categorized into 17 activities and five occupations, which included activities of daily living (ADL), instrumental activities of daily living (IADL), education, play, and participation in social activities. Among these occupations, ADL was the easiest, while participation in social activities was the most challenging. Finally, the tasks were arranged based on their difficulty level for children with visual impairment. Conclusion A comprehensive list of vision-related tasks has been developed based on the difficulty level of the tasks and the degree of dependency of children with visual impairment. This list can be used to develop standardized instruments for assessing FV in children with visual impairment.
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Affiliation(s)
- Fatemeh Ghasemi Fard
- Department of Occupational Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Hooshang Mirzaie
- Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Seyed Ali Hosseini
- Department of Occupational Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Abbas Riazi
- Department of Optometry, School of Rehabilitation Sciences, Iran university of Medical Sciences, Tehran, Iran
| | - Abbas Ebadi
- Behavioral Sciences Research Center, Life style institute, Nursing Faculty, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Huurneman B, Goossens J. Broad and Long-Lasting Vision Improvements in Youth With Infantile Nystagmus After Home Training With a Perceptual Learning App. Front Neurosci 2021; 15:651205. [PMID: 34489619 PMCID: PMC8417383 DOI: 10.3389/fnins.2021.651205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022] Open
Abstract
Current treatments for infantile nystagmus (IN), focused on dampening the oscillating eye movements, yield little to no improvement in visual functioning. It makes sense, however, to treat the visual impairments associated with IN with tailored sensory training. Recently, we developed such a training, targeting visual crowding as an important bottleneck in visual functioning with an eye-movement engaging letter discrimination task. This training improved visual performance of children with IN, but most children had not reached plateau performance after 10 supervised training sessions (3,500 trials). Here, we evaluate the effects of prolonged perceptual learning (14,000 trials) in 7-18-year-old children with IN and test the feasibility of tablet-based, at-home intervention. Results demonstrate that prolonged home-based perceptual training results in stable, long lasting visual acuity improvements at distance and near, with remarkably good transfer to reading and even stereopsis. Improvements on self-reported functional vision scores underline the clinical relevance of perceptual learning with e-health apps for individuals with IN.
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Affiliation(s)
- Bianca Huurneman
- Department Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, Netherlands.,Royal Dutch Visio, Nijmegen, Netherlands
| | - Jeroen Goossens
- Department Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, Netherlands
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Adhikari S, Elsman EBM, van Nispen RMA, van Rens F, Oli RU, Thapa SS, van Rens GHMB. Translation and cross-cultural adaptation of a Nepali version of the Dutch Participation and Activity Inventory for Children and Youth (PAI - CY) with visual impairment. J Patient Rep Outcomes 2021; 5:77. [PMID: 34432179 PMCID: PMC8387525 DOI: 10.1186/s41687-021-00342-w] [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: 12/09/2020] [Accepted: 07/13/2021] [Indexed: 11/11/2022] Open
Abstract
Background Visual impairment is an important cause of disability in children. There is a lack of information on rehabilitation needs and low vision support services for children with visual impairment in Nepal. This is a pilot study designed to translate, culturally adapt and pre-test the Dutch version of the Participation and Activity Inventory for Children and Youth (PAI-CY) with visual impairment aged 7–17 years to develop a Nepali version. Questionnaires (PAI-CY versions for 7–12 and 13–17 years) were translated using standardized methods and were culturally adapted by a panel of experts. They were pretested to evaluate comprehensibility and relevance among six children with visual impairment and blindness. Finally, participants completed a questionnaire evaluation form. Results The translation and cultural adaptation process resulted in the adaptation of nine items to make them suitable for Nepali culture. Most children had comprehensibility problems with some specific items because of vocabulary, sentence structure and the composition of items. Most of the children were satisfied with the questionnaires. Conclusion The study resulted in the development of a Nepali version of the PAI-CY. We worked with a small group of content experts and a small but representative sample of children which allowed us to use rigorous translation procedures to address language and cultural differences. A population based study has been planned to investigate the psychometric properties of these questionnaires.
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Affiliation(s)
- Srijana Adhikari
- Tilganga Institute of Ophthalmology, PO Box 561, Gaushala, Kathmandu, Nepal.
| | - Ellen Bernadette Maria Elsman
- Department of Ophthalmology, VU University Medical Centre and the Amsterdam Public Health Research Institute, PO Box 7057, 1007 MB, Amsterdam, The Netherlands
| | - Ruth Marie Antoinette van Nispen
- Department of Ophthalmology, VU University Medical Centre and the Amsterdam Public Health Research Institute, PO Box 7057, 1007 MB, Amsterdam, The Netherlands
| | | | - Radhika Upreti Oli
- Tilganga Institute of Ophthalmology, PO Box 561, Gaushala, Kathmandu, Nepal
| | - Suman S Thapa
- Tilganga Institute of Ophthalmology, PO Box 561, Gaushala, Kathmandu, Nepal
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Burggraaf F, Elsman EB, van Nispen RM, Tjon-Fo-Sang MJ, Spek B, Jellema HM. Psychometric properties of the Dutch version Adult Strabismus-20 Questionnaire (AS-20). Ophthalmic Physiol Opt 2021; 41:1007-1020. [PMID: 34392553 DOI: 10.1111/opo.12865] [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: 04/04/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE Strabismus often has an impact on a patient's quality of life (QoL). The Adult Strabismus-20 questionnaire (AS-20) is an instrument developed to assess the strabismus-specific QoL. The aim was to investigate several psychometric properties of the Dutch-AS-20 among adult patients with strabismus. METHODS Patients with any type of strabismus completed the Dutch-AS-20, the EuroQol five-dimensional questionnaire (EQ-5D-5L) and the Amblyopia and Strabismus Questionnaire (A&SQ) (N = 286). Psychometric properties were evaluated with the use of item response theory (IRT) analysis (graded response model) and by determining the internal consistency, test-retest reliability after two weeks, targeting and measurement precision. Construct validity of the AS-20 was tested against the EQ-5D-5L and the A&SQ. RESULTS Principal component analysis indicated a psychosocial and function subscale. After collapsing underutilised response options for 10 items, subsequent fit analysis showed that the function subscale benefitted from removal of two items. Differential item functioning (DIF) was detected on four items for age and gender subgroups, but with minimal impact on the total score. Internal consistency (Cronbach's alpha 0.93 psychosocial and 0.87 function subscale) and test-retest reliability (ICC 0.91 psychosocial and 0.88 function subscale) were sufficient. Targeting and measurement precision of both subscales was appropriate for patients with low to moderate levels of visual and psychosocial functioning but suboptimal for patients with high levels of visual and psychosocial functioning. Correlations were between 0.4 and 0.7 for (subscales of) the Dutch-AS-20 and the A&SQ or EQ-5D-5L, confirming expected construct validity. CONCLUSIONS The 18-item Dutch-AS-20 has sound psychometric properties to assess the strabismus-specific QoL among Dutch adult patients with low to moderate levels of visual and psychosocial functioning. Care must be taken when interpreting the results due to lower measurement precision at the higher end of both subscales. In future longitudinal studies, properties to assess treatment effects should be evaluated.
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Affiliation(s)
| | - Ellen Bm Elsman
- Amsterdam University Medical Centre (UMC), Vrije Universiteit Amsterdam, Ophthalmology, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | - Ruth Ma van Nispen
- Amsterdam University Medical Centre (UMC), Vrije Universiteit Amsterdam, Ophthalmology, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | | | - Bea Spek
- Amsterdam University Medical Centre (UMC), University of Amsterdam, Epidemiology and Data Science, Amsterdam, the Netherlands
| | - Hinke Marijke Jellema
- Amsterdam University Medical Centre (UMC), University of Amsterdam, Ophthalmology, Amsterdam, the Netherlands
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Elsman EBM, van Nispen RMA, van Rens GHMB. First stage psychometric testing of a new instrument for adolescents with visual impairment: the Participation and Activity Inventory for Children and Youth (PAI-CY) 13-17 years. J Patient Rep Outcomes 2020; 4:62. [PMID: 32700170 PMCID: PMC7376774 DOI: 10.1186/s41687-020-00228-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 07/07/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND To assess participation of children with visual impairment, the Participation and Activity Inventory for Children and Youth (PAI-CY) was recently developed. This study assessed some initial psychometric properties of the PAI-CY 13-17 years version, and investigated its feasibility. METHODS Adolescents with visual impairment and their parents (n = 72 dyads) completed the self-report and proxy-report version of the 58-item PAI-CY, an evaluation form and several questionnaires measuring related constructs. Item deletion was informed by item responses, inter-item correlations, test-retest reliability, adolescent-parent agreement and participants' feedback. Known-group validity and concurrent validity with related questionnaires were investigated for the final item-set. RESULTS Twelve items had > 20% missing values, whereas 39 items showed floor effects. Eight item pairs showed high inter-item correlations. Test-retest reliability was acceptable for most items (kappa ≥0.4). Evaluation forms showed that over 90% of respondents was neutral to very positive regarding several feasibility aspects such as administration time and comprehensiveness. Adolescent-parent agreement was mostly low. These results informed the deletion of three items. Known-group validity seemed adequate since PAI-CY scores were significantly worse for participants with comorbidity compared to those without. A trend towards worse scores for participants with more severe visual impairment was also observed. Correlations between the PAI-CY and related questionnaires confirmed concurrent validity. CONCLUSIONS Initial psychometric properties of the PAI-CY 13-17 were acceptable, although more work is needed to assess other psychometric properties, such as the underlying construct. Following implementation in low vision care to assess participation needs, enabling larger samples, acceptability of the PAI-CY 13-17 to end-users should be carefully monitored, especially if alterations are made based on the current study.
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Affiliation(s)
- Ellen B M Elsman
- Amsterdam UMC, Vrije Universiteit Amsterdam, Ophthalmology, Amsterdam Public Health Research Institute, location VUmc, PK4X 187, De Boelelaan 1117, PO Box 7057, 1007 MB, Amsterdam, The Netherlands.
| | - Ruth M A van Nispen
- Amsterdam UMC, Vrije Universiteit Amsterdam, Ophthalmology, Amsterdam Public Health Research Institute, location VUmc, PK4X 187, De Boelelaan 1117, PO Box 7057, 1007 MB, Amsterdam, The Netherlands
| | - Gerardus H M B van Rens
- Amsterdam UMC, Vrije Universiteit Amsterdam, Ophthalmology, Amsterdam Public Health Research Institute, location VUmc, PK4X 187, De Boelelaan 1117, PO Box 7057, 1007 MB, Amsterdam, The Netherlands
- Elkerliek Hospital, Ophthalmology, Wesselmanlaan 25, 5707 HA, Helmond, The Netherlands
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