Effective refractive error coverage: an eye health indicator to measure progress towards UHC
Ophthalmic and Physiological Optics
"In 2015, all United Nations Member States adopted seventeen Sustainable Development Goals (SDGs), to be achieved by 2030. One of these – SDG 3 – relates specifically to health, and includes a target (3.8) to “achieve universal health coverage, including financial risk protection, access to quality essential health‐care services and access to safe, effective, quality and affordable essential medicines and vaccines for all.”..."
From research to scaling-up programs: case study of Peek school eye health program in Trans-Nzoia...
Journal of Ophthalmology of Eastern Central and Southern Africa
Thirty Year Projected Magnitude (to 2050) of Near and Distance Vision Impairment...
"Recent global, regional and country-level prevalence estimates for blindness and vision impairment will be important when designing future public health policies. The aim of this paper is to contribute to this discussion by estimating the productivity impact of known effective interventions to treat all preventable cases of vision impairment at the global, regional and country-level up to 2050. We also provide estimates of potential reduction in the number of people with vision impairment, as well as averted vision-impaired years up to 2050."
Development and Validation of a Smartphone-based Contrast Sensitivity Test
Translational Vision Science & Technology
"Contrast sensitivity (CS) testing is an important measure of visual function reflecting variations in everyday visual experience in different conditions and helps to identify more subtle vision loss. However, it is only infrequently used. To make this more accessible, we have developed and validated a smartphone-based CS test."
Peek Community Eye Health - mHealth system to increase access and efficiency of eye health services
"We aim to evaluate a M-health system (Peek CEH) geared towards reducing avoidable blindness through early identification and improved adherence to referral for those with eye problems and reducing demand at secondary care for conditions that can be managed effectively at primary care level."
Implementing a School Vision Screening Program in Botswana Using Smartphone Technology
Telemedicine and e-Health
"Child eye health is a significant public health issue in low- and middle-income countries, such as Botswana, and the need for eye care requires a well-integrated and innovative approach. Traditional vision screening tools are costly, difficult to transport, and reliant on highly trained eye care professionals. Novel smartphone-based vision screening technologies, however, are low cost, portable, and easily operated by trained novice users. Peek Vision is a mobile health (m-Health) organization that creates smartphone applications that screen for visual acuity, generate referrals to eye care professionals, and send phone notifications to those being screened."
Rapid Assessment of Avoidable Blindness: looking back, looking forward
British Journal of Ophthalmology
"The Rapid Assessment of Avoidable Blindness, or RAAB, is a relatively simple and low-cost survey methodology to provide data on the prevalence and causes of visual loss. The aim of this article is to reflect on the achievements and challenges of RAAB, and to describe the future developments that are needed to ensure that it remains a relevant and widely used tool. To date, at least 331 RAABs have been undertaken in 79 countries, and these surveys provide an important source of information on visual loss at both the local and global level..."
Hearing and vision screening for preschool children using mobile technology, South Africa
Bulletin of the World Health Organization
"...we implemented an mHealth-supported screening programme in which children’s hearing and vision services were provided by Community Health Workers in preschool centres. We describe this community-based service-delivery model and evaluate its success in terms of acceptability (consent return numbers), coverage (number of eligible children screened), quality indicators (duration of tests and number of hearing tests conducted under conditions of excessive noise levels), community-based second screening attendances and diagnostic centre referral attendances..."
Mortality during 6 years of follow-up in relation to visual impairment and eye disease [...]
"The objective of this study was to investigate the association between VI and 6-year mortality risk within the Nakuru Eye Disease Cohort Study, a cohort of elderly Kenyan people."
Rapid assessment of avoidable blindness for health service planning
Bulletin of the World Health Organization
"The World Health Organization (WHO) Universal eye health: a global action plan 2014–2019 calls for the generation of evidence on the magnitude and causes of visual impairment as well as on eye care services, to plan towards universal eye health. The Rapid Assessment of Avoidable Blindness (commonly called RAAB) is cited in the document as a standard method for generating this epidemiological evidence."
Bulletin of the World Health Organization 2018;96:726-728. doi: http://dx.doi.org/10.2471/BLT.18.217794
Prevalence and causes of visual impairment among schoolchildren in Mekelle, Ethiopia
The aim of this study was to estimate the prevalence and causes of visual impairment (VI), among primary school children in Mekelle, Ethiopia and the feasibility of teachers conducting vision screening in school using a smart phone application: Peek Acuity.
Spectacle Compliance and Its Determinants in a School Vision Screening Pilot in Botswana
"The effectiveness of school eye health programmes relies on many factors, including compliance with spectacle wear. The objectives of this study were to determine spectacle compliance in a school vision screening pilot programme in Botswana, and investigate factors predictive of compliance."
Smartphone-based screening for visual impairment in Kenyan school children
The Lancet Global Health
Childhood visual impairment is a major public health concern that requires effective screening and early intervention. We investigated the effectiveness of Peek school eye health, a smartphone-based sight test and referral system versus standard care.
The Lancet Global Health VOLUME 6, ISSUE 8, PE924-E932, AUGUST 01, 2018
Spectacle Wear Among Children in a School-Based Program for Ready-Made vs Custom-Made [...]
"In this randomized clinical trial of a school-based eye health program in India that included 460 children, the proportion of children wearing spectacles at follow-up included 139 of 184 (75.5%) in the ready-made arm vs 131 of 178 (73.6%) in the custom-made arm..."
Study protocol: Effectiveness of a novel mobile health education intervention (Peek) [...]
"The hypothesis is that higher proportion of children with uncorrected refractive errors in schools allocated to the Peek educational package will wear their spectacles 3–4 months after they are dispensed, and a higher proportion of children identified with other eye conditions will access services, compared with schools receiving standard school screening..."
mHealth Possibilities in a Changing World. Distribution of Global Cell Phone Subscriptions
Journal of Mobile Technology in Medicine
"(mHealth) is changing the way patients are accessing healthcare worldwide.
Mobile cellular network coverage is growing to the point of ubiquity and mobile devices are advancing continually in to more sophisticated hand held computers..."
How the smartphone is driving the eye-health imaging revolution
Expert Review of Ophthalmology
"We review the latest progress in creating ophthalmic imaging devices based around smartphones, which are readily available to most practicing ophthalmologists and other medical professionals..."
Results of Automated Retinal Image Analysis for Detection of Diabetic Retinopathy from Nakuru [...]
"Safe and reliable automated analysis of retinal images may support screening services worldwide. This study aimed to compare the Iowa Detection Program (IDP) ability to detect diabetic eye diseases (DED) to human grading carried out at Moorfields Reading Centre on the population of Nakuru Study from Kenya..."
Acceptability, Usability, and Views on Deployment of Peek, a Mobile Phone mHealth Intervention [...]
JMIR Mhealth Uhealth
"Shortages in ophthalmic personnel, the high cost, and the difficulty in transporting equipment have made it challenging to offer services, particularly in rural areas. Peek offers a solution for overcoming barriers of limited access to traditional ophthalmic testing methods and has been pilot tested on adults in Nakuru, Kenya, and compared with traditional eye examination tools..."
The global inverse care law: a distorted map of blindness
British Journal of Ophthalmology
"Statistical analysis can be used to interpret and give meaning to data, however, the ability to interpret large quantities of data and it's resulting statistical reporting is not always straightforward..."
Increasing access to eye care … there's an app for that. Peek: smartphone technology for eye health
International Journal of Epidemiology
"Peek...was developed and validated alongside a cohort study of eye disease in Nakuru, Kenya.1 In the cohort, the majority of participants with visual impairment were elderly, difficult to reach and had little or no access to eye care..."
Clinical Validation of a Smartphone-Based Adapter for Optic Disc Imaging in Kenya
"This validation study compared the grading of optic nerves from smartphone images with those of a digital retinal camera. Both image sets were independently graded at Moorfields Eye Hospital Reading Centre..."
Smartphone-Based Visual Acuity Measurement for Screening and Clinical Assessment
The JAMA Network
Development and Validation of a Smartphone-Based Visual Acuity Test (Peek Acuity) [...]
"Validation study conducted from December 11, 2013, to March 4, 2014, comparing results from smartphone-based Peek Acuity to Snellen acuity (clinical normal) charts and the Early Treatment Diabetic Retinopathy Study (ETDRS) logMAR chart (reference standard)..."
"More ophthalmologists than ever carry a smartphone with them on a daily basis. There are many ophthalmic applications (apps) and reference texts available on a variety of platforms..."
iPhones for eye surgeons
"In a survey of mobile phone ownership, 99% of health professionals own a mobile phone, with 81% of these being a smartphone..."
Mobile health use in low- and high-income countries: an overview of the peer-reviewed literature
Journal of the Royal Society of Medicine
"The evolution of mobile phone technology has introduced new possibilities to the field of medicine. Combining technological advances with medical expertise has led to the use of mobile phones in all healthcare areas including diagnostics, telemedicine, research, reference libraries and interventions..."
The Nakuru eye disease cohort study: methodology & rationale
"No longitudinal data from population-based studies of eye disease in sub-Saharan-Africa are available. A population-based survey was undertaken in 2007/08 to estimate the prevalence and determinants of blindness and low vision in Nakuru district, Kenya..."
Towards a workflow driven design for mHealth devices within temporary eye clinics [...]
Engineering in Medicine and Biology Society (EMBC), 2015 37th Annual International Conference [...]
"Only a small minority of mobile healthcare technologies that have been successful in pilot studies have subsequently been integrated into healthcare systems. Understanding the reasons behind this discrepancy is crucial if such technologies are to be adopted. We believe that the mismatch is due to a breakdown in the relation between technical soundness of the original mobile health (mHealth) device design, and integration into healthcare provision workflows..."
The Diabetic Retinopathy Screening Workflow: Potential for Smartphone Imaging
Journal of Diabetes Science and Technology (JDST)
"Complications of diabetes mellitus, namely diabetic retinopathy and diabetic maculopathy, are the leading cause of blindness in working aged people. Sufferers can avoid blindness if identified early via retinal imaging..."
Photometric Compliance of Tablet Screens and Retro-Illuminated Acuity Charts [...]
"This study photometrically characterised seven tablet computers (iPad, Apple inc.) and three ETDRS (Early Treatment Diabetic Retinopathy Study) visual acuity charts with room lights on and off, and compared findings with visual acuity measurement standards..."
36 million people worldwide are blind. Four in five of them could keep their sight with simple surgery or treatment. Millions more can't see clearly, yet need no more than a simple pair of glasses. We won't stop until everyone has been linked to the treatment and services they need.