Eye Health Program Research Articles

Measuring utility values of eye conditions among children in India using the EQ-5D-Y instrument

BackgroundVision impairment and blindness are significant global public health challenges, particularly in low- and middle-income countries, where access to eye care services remains limited. India has significantly reduced the prevalence of Blindness and Vision Impairment (VI) over the last two decades. This was achieved with the help of greater investments towards blindness control programs. The use of utility values helps in conducting economic evaluations of various eye health programs and empirically justify investing in these programs. This study aimed to estimate utility values for various childhood eye conditions in central India using the EuroQol-Five-Dimension-Youth (EQ-5D-Y) instrument.MethodsThis is a before and after study with data collected at two time points for few participants and at only one time point for others. This study was undertaken at Shri Sadguru Netra Chikitsalaya (SNC) and included children representing central and north India. Participants were randomly sampled in the hospital. After comprehensive eye examination, participants completed the EuroQol-Five-Dimension-Youth (EQ-5D-Y) questionnaire along with EuroQol Visual Analogue Scale (EQ VAS) measurement to elicit their health state for their condition which was repeated after six months post-intervention to measure the change in utility value. We have used Indonesian value set to analyze the preference scores of each dimension of EQ-5D-Y.ResultsUtility values of 16 eye conditions were estimated at baseline and seven conditions were followed up for post-intervention utility value estimation. There is a statistically significant improvement in the utility values post-intervention amongst six conditions. Blindness and Pediatric cataract had the greatest change (0.23 and 0.2 respectively) in utility value whereas mild Vision Impairment (VI) showed the least change (0.02) in the utility value post-intervention. Blindness had the lowest baseline (0.62) and post-intervention (0.85) utility value.ConclusionThe utility values estimated in this study showed that generic measures such as EQ-5D-Y may be used to elicit health states for various eye conditions amongst children. These estimates are helpful in undertaking cost-utility analyses of eye health programs and interventions aimed at these eye conditions.

Eye health knowledge, attitude, and practice among special school managers and barriers to eye health programmes in special schools in Hyderabad, India.

Children with special education needs (SEN) are at high risk of developing vision problems. In India, there is no data available on the awareness level of eye health needs of children with SEN among special school managers (SSM) and on the barriers to providing eye care for these children in schools. This study aimed to identify the awareness level among SSM and the barriers to organizing School Eye Health (SEH) programmes in special schools, as reported by the eye health program organizers. A mixed-method study was conducted between July and August 2020 among SSM and eye health programme organizers from a local eye care provider in Hyderabad, India. SSM participants completed an online questionnaire assessing their knowledge, attitude, and practice concerning the eye health needs of children with SEN. Quantitative responses were described with summary statistics. Qualitative interviews with eye health programme organizers were conducted via telephone, and transcripts were thematically analysed. Results: In total, 13/67 (19.4%) invited SSM participated and 2/4 invited eye health programme organizers (50%) were interviewed. Among the SSM participants, 92.3% were aware of vision impaired (VI) children in their schools. Awareness of potential causes of VI ranged from 53.9%-92.3%, common eye conditions ranged from 7.7%-69.2%, and difficulties experienced by children with SEN in classroom activities ranged from 46.2%-76.9%. Only 30.8% of the special schools organized SEH programmes at least once a year. Eye health programme organizers reported barriers, such as a lack of interest from SSM, unavailability of qualified screening staff, and a lack of provision for spectacles and low-vision devices. This study identified varied levels of knowledge, attitudes, and practices of SSM related to the eye health needs of children with SEN. Key barriers to conducting SEH programmes included a lack of demand, inadequate human resource availability, and limited access to government-funded resources. As the study was negatively impacted by the Covid pandemic, further research with wider representation is needed to plan comprehensive eye health programmes for children with SEN.

Case Finding and Management of Childhood Cataracts: The Role of a Child Eye Health Programme in Kaduna State, Nigeria

Abstract Objective: To evaluate the output of a child eye health programme in terms of identification, referral, and volume of paediatric cataract surgeries in Kaduna State, Nigeria. Materials and Methods: This was a retrospective review of the North-West Nigeria Child Eye Health Initiative programme referral registers at primary, secondary and tertiary hospitals in Kaduna State. Theatre registers of children 0–16 years who had cataract surgery at National Eye Centre Kaduna between 2016 and 2019 were also reviewed. Information on numbers of children, age, sex, laterality of cataract and programme status were summarised as frequencies, percentages and mean ± standard deviation. The initial 2 years of the programme (2018–2019) were compared with the 2 years (2016–2017) preceding them. Results: Between January 2018 and December 2019; primary health workers screened 41,552 children and referred 2,316 (5.6%). Of those referred 1772 (76.5%) presented at one of three zonal secondary hospitals where nurses identified 492 (27.8%) with leukocoria using torchlights and referred them to the tertiary hospital. At the tertiary hospital, 364 (74.0% of 492) attended and 262 (72.0% of 364) were confirmed to have operable cataracts after dilated slit lamp examination by ophthalmologists. Between 2016 and 2017 (pre-programme years), 201 children had cataract surgery compared to 352 in 2018 and 2019 (programme years) of whom 239 (67.9% of 352) were beneficiaries of the programme. The proportion of girls who had cataract surgery declined from 39.8% to 35.0%, while mean age increased from 5.7 ± 4.2 years to 7.5 ± 4.1 over 4 years. More children with unilateral cataracts (214 [60.8%]) presented during the programme years (Fishers exact test, P = 0.004), whereas unilateral cataract (207 [60.2%]) was significantly more common in males than females (Fisher’s exact P = 0.017). Conclusion: The programme has resulted in improved case detection of childhood leukocoria at primary eye care level. additionally, the eye health referral system in Kaduna State has been strengthened with increasing numbers of children accessing services: majority boys, older children, and unilateral cataracts.

Utilisation of eye health services and compliance with spectacles wear among community school adolescents: a mixed-methods study from Bagmati province of Nepal

ObjectivesThis study aims to determine the factors influencing eye care service utilisation and compliance with spectacles wear among school students.DesignMixed-methods study.Setting27 community schools from 6 districts of Bagmati province of...

Assessment of eye health programme reach by comparison with rapid assessment of avoidable blindness (RAAB) survey data, Talagang, Pakistan

BackgroundThe purpose of this study was to quantify how much of the burden of visual impairment (VI) and unmet need in Talagang, identified by Rapid Assessment of Avoidable Blindness (RAAB) survey data, has been addressed by Community Eye Health (CEH) programme efforts.MethodsA RAAB survey was carried out in November 2018, with 2,824 participants in Talagang Tehsil, Punjab, Pakistan, aged 50 and over. Census data were used to extrapolate survey data to the population. Alongside this, a CEH programme was launched, consisting of community eye screening, and onward referral to rural health centres, secondary or tertiary ophthalmological services, as required. This health intervention aimed to address the eye care needs surfaced by the initial survey. From 2018 to 2022, 30,383 people aged 50 or over were screened; 14,054 needed referral to further steps of the treatment pathway and more detailed data collection. Programme data were compared to estimates of population unmet needs. Main outcome measures were prevalence of VI, and proportion of need met by CEH Programme, by cause and level of VI.ResultsAmong those aged 50 and over, 51.0% had VI in at least one eye. The leading causes were cataract (46.2%) and uncorrected refractive error (URE) (25.0%). In its first four years, the programme reached an estimated 18.3% of the unmet need from cataract, and 21.1% of URE, equally in both men and women.ConclusionsRobustly collected survey and programme data can improve eye health planning, monitoring and evaluation, address inequities, and quantify the resources required for improving eye health. This study quantifies the time required to reach eye health needs at the community level.

Strategies to address inequity of uncorrected refractive error in the Western Pacific: A modified Delphi process.

Uncorrected refractive error is the leading cause of vision impairment globally; however, little attention has been given to equity and access to services. This study aimed to identify and prioritise: (1) strategies to address inequity of access to refractive error services and (2) population groups to target with these strategies in five sub-regions within the Western Pacific. We invited eye care professionals to complete a two-round online prioritisation process. In round 1, panellists nominated population groups least able to access refractive error services, and strategies to improve access. Responses were summarised and presented in round 2, where panellists ranked the groups (by extent of difficulty and size) and strategies (in terms of reach, acceptability, sustainability, feasibility and equity). Groups and strategies were scored according to their rank within each sub-region. Seventy five people from 17 countries completed both rounds (55% women). Regional differences were evident. Indigenous peoples were a priority group for improving access in Australasia and Southeast Asia, while East Asia identified refugees and Oceania identified rural/remote people. Across the five sub-regions, reducing out-of-pocket costs was a commonly prioritised strategy for refraction and spectacles. Australasia prioritised improving cultural safety, East Asia prioritised strengthening school eye health programmes and Oceania and Southeast Asia prioritised outreach to rural areas. These results provide policy-makers, researchers and funders with a starting point for context-specific actions to improve access to refractive error services, particularly among underserved population groups who may be left behind in existing private sector-dominated models of care.

Bridging vision gaps: a comprehensive study of the RAAHI programme for improving truckers' eye health in India

Bridging vision gaps: a comprehensive study of the RAAHI programme for improving truckers' eye health in India

Priorities in school eye health in low and middle-income countries a scoping review.

School eye health (SEH) has been on the global agenda for many years, and there is mounting evidence available to support that school-based visual screenings are one of the most effective and cost-efficient interventions to reach children over five years old. A scoping review was conducted in MEDLINE, Web of Science, PubMed, and CINHAL between February and June 2023 to identify current priorities in recent literature on school eye health in low- and middle-income countries (LMICs). Selection of relevant publications was performed with Covidence, and the main findings were classified according to the WHO Health Promoting Schools framework (HPS). A total of 95 articles were included: cross-sectional studies (n = 55), randomised controlled trials (n = 7), qualitative research (n = 7) and others. Results demonstrate that multi-level action is required to implement sustainable and integrated school eye health programmes in low and middle-income countries. The main priorities identified in this review are: standardised and rigorous protocols; cost-effective workforce; provision of suitable spectacles; compliance to spectacle wear; efficient health promotion interventions; parents and community engagement; integration of programmes in school health; inter-sectoral, government-owned programmes with long-term financing schemes. Even though many challenges remain, the continuous production of quality data such as the ones presented in this review will help governments and other stakeholders to build evidence-based, comprehensive, integrated, and context-adapted programmes and deliver quality eye care services to children all over the world.

Effective refractive error coverage and spectacle coverage among school children in Telangana, South India.

Uncorrected refractive error (URE) is one of the leading causes of childhood vision impairment. Increasing effective refractive error coverage (e-REC) is one of the main indicators of WHO's 2030 global eye health targets. The aim of this study is to estimate the e-REC and spectacle coverage among school children in Telangana, South India. School children aged 4-15 years in the study locations underwent vision screening using 6/12 tumbling E optotype by trained community eye health workers in the schools. Those failing the initial vision screening and/or found to be having eye conditions were referred to a nearby referral centre appropriately, where they underwent detailed eye examination. A total of 774,184 children were screened in schools of which 51.49% were boys. The mean age was 9.40 ± 3.27 years. The prevalence of URE was 1.44% (95%CI:1.41-1.46) of which myopia was 1.38% (95%CI: 1.35-1.41). In multivariate analysis, the risk of myopia was higher among older children (Adj.OR: 17.04; 95%CI: 14.64-19.85), those residing in urban areas (Adj.OR:3.05, 95%CI:2.60-3.57), those with disabilities (Adj.OR:2.61, 95%CI:2.00-3.39) and among girls (Adj.OR:1.30, 95%CI:1.25-1.35) (P < 0.001). The overall e-REC was 56.97% and the spectacle coverage was 62.83%. The need for interventions to improve e-REC to achieve 2030 global eye health target is eminent among children in this region. Improving refractive services through school eye health programs could aid in accelerating this process to achieve the target. Myopia being the most common type of RE, the risk factors included increasing age, urban location, and presence of disability.

Eyesight to insight: evidence from urban eye health programme

India, with a population exceeding 1.486 billion, faces substantial challenges in urban eye health, particularly in densely populated states like Uttar Pradesh. This study delves into real-world impact of urban eye health programme, implemented in Kanpur and Prayagraj, Uttar Pradesh, aiming to identify success factors and examine the tangible effects of interventions through comprehensive endline study. Utilizing a hub-and-spoke model, the programme established base hospitals as hubs and vision centres as spokes, creating a network for affordable and accessible eye care. The project significantly improved accessibility, with over 85% in Kanpur and 97% in Prayagraj reporting easy access to vision centres. A shift in community behaviour was observed, with a preference for vision centres for eye examinations increasing from 5.6-64.6% in Kanpur and 10.6-57.1% in Prayagraj. The programme empowered women to prioritize their eye health, reaching 53% of women for eye screening. Community perception shifted positively, with over 82% in Prayagraj recognizing the programme's pivotal role. In Kanpur, 87.5% of women actively take charge of their eye health decisions, while 99.1% do so in Prayagraj. This empowerment underscores programme commitment to providing equal access to eye care and demonstrates a strong focus on inclusivity and gender equality.

Implementation of Integrated People-Centered Eye Care at Sub-District Level in Barru

Purpose: Integrated People-Centered Eye Care (IPCEC) was initiated by the World Health Organization as a global strategy in community-centred and integrated health services. In Indonesia, the Rapid Assessment of Avoidable Blindness survey showed the largest number of moderate and severe visual impairment was found in South Sulawesi, particularly uncorrected refractive error (33.8%). The results of this study are expected to initiate and introduce IPCEC-based eye health services and promotion at the sub-district level.&#x0D; Methods: The program started with advocacy of eye health programs at the sub-district level to policy makers. In schools, education and training for visual acuity examination were given to teachers. All children who failed the screening or have ocular abnormalities are referred to eye care center. Mass counseling and examination were also carried out at the health center simultaneously with screening for mass cataract surgery at the Barru District Hospital.&#x0D; Results: Implementation of IPCEC was welcomed by Barru District government. School eye health program conducted by the teachers in 5 schools screened 1263 students with 90.74% of the students had normal visual acuity. Mass screening at the Pekkae and Pancana Public Health Centers found that most participants had cataracts (58%) followed by refractive error (38%).&#x0D; Conclusion: Visual acuity examination among school-age children by the teacher will improve early detection of refractive errors. Screening by eye health worker at public health center needs to be carried out to identify blindness causes often found in the community, and proceed with prescribing drugs, eyeglasses, and mass cataract surgery as definitive step in eradicating blindness.

Prevalence and Pattern of Eye Disorders Among Primary Schoolchildren in Abakaliki, Nigeria: A Cross-Sectional Study.

Background A child's learning ability depends on vision, and visual impairment negatively affects neurological, intellectual, and emotional development by limiting children's exposure to a range of experiences and information. This study aims to determine the prevalence and pattern of ocular morbidity among primary schoolchildren in Abakaliki and provide evidence that can be used in planning a school eye health program for the state. Methodology A school-based, cross-sectional study was conducted within the Abakaliki metropolis between January and April 2018 to determine the ocular health status of schoolchildren recruited using stratified random sampling. Data were analyzed using SPSS version 22 (IBM Corp., Armonk, NY, USA) and presented using descriptive statistics. Univariate analysis was performed to determine the association between dependent and independent variables, with the level of significance determined by a p-value <0.05 (95% confidence interval (CI)). Results A total of 553 schoolchildren aged 6-16 years were examined. The prevalence of eye disorders was 23.5%. Common disorders included refractive error (12.7%) and allergic eye disease (7.1%). Other findings included glaucoma suspect (15, 2.7%), infective conjunctivitis (1, 0.2%), amblyopia (3, 0.5%), cataract (1, 0.2%), and squint (1, 0.2%). The prevalence of visual impairment was 3.1%. Univariate analysis showed a significant association between ocular morbidity and attending private schools (95% CI = 6.5-11.1, p = 0.003). Conclusions Eye disorders such as uncorrected refractive error and allergic conjunctivitis were common among schoolchildren. School eye health programs can ensure that eyescreening is done periodically, allowing for early detection, referral, and prompt treatment of eye diseases that can potentially cause visual impairment.

Near vision data and near correction requirements from community eye health programmes in nine countries.

Recent estimates of global prevalence of uncorrected presbyopia range from 510 to 826 million. There is a shortage of primary data regarding Near Visual Impairment (NVI) magnitude. Near visual acuity (NVA) and NVI data was collected from over 388,000 people aged 35 or over across 9 countries, within Community Eye Health programmes between January 2022 and June 2023. In Kenya (n = 34,328), dioptric power of required near correction was also recorded, and any association with age, gender or level of NVA was assessed via linear regression model. 146,801 of 388,939 people failed initial near vision screening (37.74%, 95% CI 37.59-37.89%), with significantly higher prevalence of NVI in Sub-Saharan Africa than South Asia. Of those with distance acuity 6/12 or better, 27.97% failed (95% CI 27.81-28.13%) with evidence of difference between genders (p < 0.001): 30.77% of women vs. 24.47% of men. The most commonly required dioptric powers of correction were +2.00D, +2.50D and +3.00D, and required power correlated with age and NVA. NVI remains common among Community Eye Health programme participants aged 35 and over. Data from large scale programmes such as these provide an opportunity to contribute to more accurate epidemiological estimates, and to guide future research, resource planning and intervention, ideally with improved standardisation of testing in the future.

School Visual Impairment Survey in Anambra State, South-East Nigeria

Background: Good eye health is needed among school children for optimal learning, social participation, future economic productivity, and for maximizing their ability to attain the fundamental children’s rights. Cumulatively, primary and post-primary schools have direct contact with children for 6 or more hours a day, for up to 13 critical years of development. The study was aimed at determining the visual status of school children in Njikoka local government area (LGA), Anambra State, South-Eastern Nigeria with a view to providing evidence-based support for structured school eye health interventions. Methods: This was a cross-sectional, descriptive study in selected schools using a multi-staged random sampling technique. Ocular examination was performed on 1182 selected school children aged 5–16 years. Data on visual acuity and ocular abnormalities were recorded. Data were subjected to descriptive and comparative statistical analyses. In all comparisons, P &lt; 0.05 was considered statistically significant. Results: Fifty-four pupils (6.3%) in primary and 91 (27.9%) students in post-primary school were visually impaired. The proportion of visual impairment due to uncorrected refractive errors was 51.8% and 58.2% in primary and post-primary schools, respectively. Other ocular conditions identified included allergic conjunctivitis, glaucoma suspect, red eye, and amblyopia. Conclusion: The prevalence of visual impairment among school children in the study area is significant. Uncorrected refractive errors were the most common cause of visual impairment. Creating a sustainable school-based eye health program through stakeholder awareness advocacy, training of teachers and nurses on visual acuity assessment is recommended for early detection and referral of children with poor vision.

Ocular Morbidities among Children in Nepal

Introduction: Eye health is an important and integral part of overall health, well-being and quality of life, particularly for school children. This review study was aimed to understand the ocular morbidities and status of visual impairment in children and adolescents in Nepal. Methods: An integrative literature review was done. This review included the studies conducted among Nepalese children on ocular morbidities, which were published in English language and full text available. Results: Ocular morbidity was reported for different group of children including the children with special conditions, disadvantaged children as well as children in schools and communities in different parts of the country. Refractive error was the most prevalent condition noted in the review. Factors associated with ocular morbidities in Nepalese children were age, sex, type of school, area of residence, geographical location, environmental factors, and genetic and systemic illnesses. Many of the visual impairment and blindness are preventable. Conclusion: This review highlighted the need for regular eye health program to identify and address causes of ocular morbidity and vision impairment in children.

Contextual factors affecting integration of eye health into school health programme in Zanzibar: a qualitative health system research

BackgroundShort-term school eye health programmes supported by external funders have sustainability issues. This study aimed to understand the contextual factors affecting integrating eye health into the school health programme.MethodsWe elicited responses from 83 respondents, purposefully selected from the Ministry of Health (n = 7), Ministry of Education and Vocational Training (n = 7), hospitals/eye centres (n = 5), master trainers (4) and schools (n = 60) who participated in in-depth interviews. Their responses were analysed and grouped into contextual factors according to the WHO Consolidated Framework for Implementation Research: stakeholders/political, institutional, physical, cultural, delivery system and others. Themes were then generated, and quotations were presented to illustrate the findings.ResultsThe six contextual factors affecting the integration of eye health into the school eye health programme were i) Stakeholders/political (Good ministry coordination, defined departmental roles and resource mobilisation from multiple stakeholders; Good stakeholder synergies and address current gaps); ii) Institutional (Institutional coordination and adequate clinic space; Securing human and financial resources; Strategic advocacy for institutional resources); iii) Physical (Long travel distance to service points); vi) Cultural (low eye health awareness among parents, teachers and children); iv) Delivery system (Practical approach to increase screening coverage using teachers as screeners; Balance teachers’ workload, increase screening sensitivity and follow up and; v) Others (Comprehensive training material and effective training delivery; Improved curriculum, teacher selection and supervision and incentives).ConclusionIntegrated school eye health delivery is generally well-received by stakeholders in Zanzibar, with the caveat that investment is required to address the six contextual factors identified in the study.

Cost-effectiveness analysis of child eye health interventions in India

Abstract Background India has 4.8 million blind persons including 250,000 blind children, and 35 million visually impaired individuals. Prevalence of blindness is 0.36%, it was 1% two decades ago due to significant public health programs towards prevention and treatment by various stakeholders. Time is opportune for cost-effectiveness analyses of these programs. There is a lack of research evidence related to quality-of-life utility values for eye health conditions in India. This study aims to develop utility values for vision impairment and conduct cost-effectiveness analysis of eye health interventions for childhood vision impairment. Methods Cross-sectional questionnaire-based study. 306 Children aged 4-16 years of age with unaddressed vision impairment included. Random sampling was done at a tertiary eye hospital in central India. EQ-5D-Y-3L questionnaire along with VAS score was used to measure utility measures for each of the vision impairment levels. Vision impairment was defined based on WHO classification. Mixed methods were used to collect cost data related to interventions, sensitivity analyses were performed to account for uncertainties. The protocol was approved by institutional ethics committee of university of Hyderabad (UH/IEC/2020/222). Results Median utility value of mild and moderate vision impairment is 0.8 (95% CI 0.7-0.9), severe vision impairment is 0.7 (95% CI 0.65-0.75), and for blindness is 0.55 (95% CI 0.44-0.72). Willingness to pay (WTP) is USD 2,935. ICERs for mild, moderate, severe vision impairment and blindness are USD 81, USD 367, USD 44, USD 954 respectively. Conclusions The utility value of 0.55 for blindness correlates with existing literature. ICERs for various levels of vision impairment show the interventions to be cost-effective. There is a significant improvement in utility values post intervention. The utility measures are recommended to be used to evaluate eye health programs, and as advocacy tools for preventive eye care. Key messages • There is a significant improvement in utility values post-intervention and the interventions are highly cost-effective. • Important decision-making tool for allocating scarce resources to preventive eye care services.

IAPB and ILO plan to protect workers’ vision

Lucy Patchett reports on the occupational eye health programme outlined by the Eye Health and the World of Work report ahead of World Sight Day

Refractive error, eye care needs and attitude towards spectacle wearing among older Zanzibari craftswomen and implications for developing women-targeted services: a cross-sectional study

BackgroundAged Zanzibari women are in a disadvantaged position, having high demand for near-vision spectacles. Currently, there is no information on the eye health status of craftswomen, which makes planning a...

Access to school-based eye health programs in Central Region, Malawi: a qualitative case study.

Vision impairment among children is associated with lower levels of educational attainment. School-based eye health programs have the potential to provide high-quality and cost-effective services that assist in the prevention of blindness and uncorrected vision impairment, particularly in low-resources settings. The aim of this study was to identify key factors that inhibit or facilitate the provision of school-based eye health programs, including referral to eye care services, for Malawian children in the Central Region. In-depth interviews (n = 10) and focus groups (n = 5) with children, parents, school staff, eye care practitioners, government and NGO workers (total participants n = 44) in rural and urban contexts within central region, Malawi, were conducted. Taking a rights-based approach, we used the AAAQ (availability, accessibility, acceptability, quality) framework to identify barriers and enablers to school eye health programs. Complex factors shape access to school-based eye health programs. While intersectoral collaboration between ministries was present, infrastructure and resourcing restricted the delivery of school eye health programs. School staff were supportive of being trained as vision screeners. Parents voiced geographic access to follow up eye care, and spectacle cost as a barrier; and children revealed experiences of stigma related to spectacle as barriers to uptake. School-based eye care may be facilitated through teachers, community informants and health workers through; the provision of school vision screening; increased awareness of the impact of vision impairment on education and future employment; and through educational approaches that seek to decrease stigma and misconceptions associated with wearing spectacles.