A5019239831- Retinal Imaging and Analysis
- Ophthalmology and Visual Impairment Studies
- Global Maternal and Child Health
- Retinal and Optic Conditions
- Retinal Diseases and Treatments
- Healthcare Systems and Reforms
- Ophthalmology and Visual Health Research
- Glaucoma and retinal disorders
- Intraocular Surgery and Lenses
- Global Health Care Issues
- Travel-related health issues
- Innovations in Medical Education
- Global Health and Surgery
- Global Healthcare and Medical Tourism
- Ocular Diseases and Behçet’s Syndrome
- Global Public Health Policies and Epidemiology
- Patient Satisfaction in Healthcare
- Delphi Technique in Research
- Health disparities and outcomes
- Ocular Surface and Contact Lens
- Nutritional Studies and Diet
- Retinoids in leukemia and cellular processes
- Visual perception and processing mechanisms
- Antioxidant Activity and Oxidative Stress
- Counseling Practices and Supervision
University of Kigali
2012-2021
Fred Hollows Foundation
2013-2017
London School of Hygiene & Tropical Medicine
2006-2013
University of London
2010-2013
Kenya Land Alliance
2006-2010
Abstract Background Cardiovascular disease (CVD) is the leading cause of death among older people in Africa. This study aimed to investigate relationship urbanization and ethnicity with CVD risk markers Kenya. Methods A cross-sectional population-based survey was carried out Nakuru Kenya 2007-2008. 100 clusters 50 aged ≥50 years were selected by probability proportionate size sampling. Households within through compact segment Participants interviewed nurses collect socio-demographic...
BackgroundCataract is the leading cause of blindness globally. Effective cataract surgical coverage (eCSC) measures number people in a population who have been operated on for cataract, and had good outcome, as proportion all or requiring surgery. Therefore, eCSC describes service access (ie, coverage, [CSC]) adjusted quality. The 74th World Health Assembly endorsed global target 30-percentage point increase by 2030. To enable monitoring progress towards this target, we analysed Rapid...
Background The World Health Organization estimates that there were 37 million blind people in 2002 and the prevalence of blindness was 9% among adults Africa aged 50 years or older. Recent surveys indicate this figure may be overestimated, while a survey from southern Sudan suggested postconflict areas are particularly vulnerable to blindness. aim study conduct Rapid Assessment for Avoidable Blindness estimate magnitude causes visual impairment ≥ y area Western Province Rwanda, which...
Background The link between poverty and health is central to the Millennium Development Goals (MDGs). Poverty can be both a cause consequence of poor health, but there are few epidemiological studies exploring this complex relationship. aim study was examine association visual impairment from cataract in adults Kenya, Bangladesh, Philippines. Methods Findings A population-based case–control conducted three countries during 2005–2006. Cases were persons aged 50 y or older visually impaired...
Objective Digital retinal imaging is an established method of screening for diabetic retinopathy (DR). It has been that currently about 1% the world’s blind or visually impaired due to DR. However, increasing prevalence diabetes mellitus and DR creating increased workload on those with expertise in grading images. Safe reliable automated analysis images may support services worldwide. This study aimed compare Iowa Detection Program (IDP) ability detect eye diseases (DED) human carried out at...
Background Poverty and blindness are believed to be intimately linked, but empirical data supporting this purported relationship sparse. The objective of study is assess whether there a reduction in poverty after cataract surgery among visually impaired cases. Methodology/Principal Findings A multi-centre intervention was conducted three countries (Kenya, Philippines, Bangladesh). (household per capita expenditure – PCE, asset ownership self-rated wealth) were collected from cases aged ≥50...
To describe the rational for, and methods that will be employed to develop, WHO package of eye care interventions (PECI).The development conducted in four steps: (1) selection conditions (for which included package) based on epidemiological data causes vision impairment blindness, prevalence estimates health facility data; (2) identification related evidence for selected from clinical practice guidelines high-quality systematic reviews by a technical working group; (3) expert agreement...
Presbyopia is the most common reason for requiring spectacles in low-income regions, although unmet need presbyopic these regions very high. The aim of this study was to estimate prevalence presbyopia, and functional impairment spectacle use among persons with presbyopia a rural Kenyan population.A cross-sectional carried out Rift Valley, Kenya. Clusters were selected through probability-proportionate size sampling, people aged >/=50 years within clusters identified compact segment sampling....
<b>Aims:</b> To evaluate the World Health Organization Prevention of Blindness and Deafness 20-item Visual Functioning Questionnaire (WHO/PBD VF20), a vision-related quality life scale, to describe relationship between cataract visual impairment vision- generic health-related life, in people ⩾50 years age Nakuru district, Kenya. <b>Methods:</b> The WHO/PBD VF20 was pilot tested modified. 196 patients with from 128 population-based controls without were identified through district-wide...
AbstractPurpose: To estimate the prevalence of and factors associated with diabetic retinopathy (DR) among people aged ≥50 years in Nakuru, Kenya.Methods: Probability-proportional-to-size sampling was used to select 100 clusters 50 during 2007–2008. Households within were selected through compact segment sampling. Participants underwent dilated slit lamp biomicroscopy (SLB) by an ophthalmologist digital retinal photography. Images graded for DR at Moorfields Eye Hospital Reading Centre, UK....
The epidemic rise of diabetes carries major negative public health and economic consequences particularly for low middle-income countries. highest predicted percentage growth in is the sub-Saharan Africa (SSA) region where to date there has been no data on incidence diabetic retinopathy from population-based cohort studies minimal incident diabetes. primary aims this study were estimate cumulative six-year Diabetes Mellitus (DM) DR (Diabetic Retinopathy), respectively, among people aged ≥50...
With a global target set at reducing vision loss by 25% the year 2019, sub-Saharan Africa with an estimated 4.8 million blind persons will require human resources for eye health (HReH) that need to be available, appropriately skilled, supported, and productive. Targets HReH are useful planning, monitoring, resource mobilization, but they updated informed evidence of effectiveness efficiency. Supporting should take into consideration (1) ever-changing disease-specific issues including...
Purpose: To assess the impact of cataract surgery on vision related quality life (VRQoL) and generic health (HRQoL) in Kenya, Bangladesh Philippines.Methods: A multi-center intervention study was conducted. At baseline 651 cases aged ≥50 years with visually impairing (corrected visual acuity (VA) <6/24) 561 age- gender-matched controls normal (VA>6/18) were interviewed about VRQoL (using World Health Organization/ Prevention Blindness Deafness 20-item Visual Functioning Questionnaire...
Purpose: Cataract is the leading cause of blindness worldwide, and particularly common in low- middle-income countries. Our study aims to identify predictors for barriers acceptance cataract surgery Kenya, Bangladesh Philippines. Methods: Cases were individuals aged ≥50 years with best corrected VA <6/24 better eye due who identified through population-based surveys community-based case detection. asked why they had not attended surgery. They offered free followed-up at one year....
Background Evidence on the practical application of artificial intelligence (AI)-based diabetic retinopathy (DR) screening is needed. Methods Consented participants were screened for DR using retinal imaging with AI interpretation from March 2021 to June at four diabetes clinics in Rwanda. Additionally, images graded by a UK National Health System-certified image grader. grades based International Classification Diabetic Retinopathy grade 2.0 or higher considered referable. The system was...