Purpose: To compare smartphone photoscreening with other commercial objective screeners for amblyopia screening for young children.
Methods: Ten pediatricians in four practices employed Nokia 1020 smartphones (Espoo, Finland) with single-axis Gobiquity software (Scottsdale, AZ) during well-child visits. Outcomes of confirmatory pediatric ophthalmology examinations were prospectively compared using American Association for Pediatric Ophthalmology and Strabismus uniform standards.
Results: Five percent of 6,310 in-office screenings were referred: 25% for high anisometropia, 31% for hyperopia, and 15% for myopia. The positive predictive value (PPV) in 217 follow-up examinations was 68% (95% confidence interval: 62% to 74%) by 2013 age-stratified standards and 77% (confidence interval: 71% to 83%) by 2003 American Association for Pediatric Ophthalmology and Strabismus standards. The follow-up rate was 65%.
Conclusions: Smartphone photoscreening had PPV comparable with other commercial objective screeners. Simple, valid photoscreeners should help pediatricians achieve widespread compliance with screening guidelines to reduce the burden of pediatric amblyopia vision impairment. [J Pediatr Ophthalmol Strabismus. 2018;55(6):393-396.].
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http://dx.doi.org/10.3928/01913913-20180710-01 | DOI Listing |
Rev Paul Pediatr
May 2022
Universidade de São Paulo, São Paulo, SP, Brazil.
Objective: The main aim of this study was to evaluate the performance of a platform designed for pediatricians to screen amblyopia using a smartphone.
Methods: The medical records of consecutive children who received visual screening using a smartphone platform were retrospectively reviewed. The smartphone was used with a flash concentrator case and a software for capturing images of both eyes simultaneously by a photorefraction mechanism.
Indian J Ophthalmol
August 2021
Sankara Academy of Vision, Sankara Eye Hospital, Stanford, California, USA.
Purpose: Amblyopia is a significant public health problem. Photoscreeners have been shown to have significant potential for screening; however, most are limited by cost and display low accuracy. The purpose of this study was validate a novel artificial intelligence (AI) and machine learning-based facial photoscreener "Kanna," and to determine its effectiveness in detecting amblyopia risk factors.
View Article and Find Full Text PDFJMIR Mhealth Uhealth
July 2020
TerryDr Infomation Technology, Nanjing, China.
Background: Young children's vision screening, as part of a preventative health care service, produces great value for developing regions. Besides yielding a high return on investment from forestalling surgeries using a low-cost intervention at a young age, it improves school performance and thus boosts future labor force quality. Leveraging low-skilled health care workers with smartphones and automated diagnosis to offer such programs can be a scalable model in resource-limited areas.
View Article and Find Full Text PDFClin Ophthalmol
May 2020
Alaska Blind Child Discovery, Anchorage, AK, USA.
Background: Photoscreeners provide valid, cost-effective early detection of amblyopia risk factors; however, they require proper illumination, flash intensity, pupil dilation and patient cooperation. The Kaleidos case for the 2WIN infrared photoscreener fixes focal distance, decreases luminance and provides electric power. GoCheck Kids (GCK) has developed a flash-concentrating case for the Apple iPhone 7 Plus smartphone to reduce exposure time.
View Article and Find Full Text PDFJ AAPOS
February 2020
University of California, San Francisco, San Francisco, California. Electronic address:
Purpose: To determine the positive predictive value (PPV) of GoCheck Kids, a smartphone-based photoscreener, to detect refractive amblyopia risk factors (ARFs) in children 3-48 months of age.
Methods: The medical records of all children ≤48 months of age who failed GoCheck Kids photoscreening at a University of California, San Francisco, pediatric clinic between February 2017 and August 2018 and subsequently examined at the pediatric ophthalmology clinic were reviewed retrospectively. The PPV of GoCheck Kids was determined, where a true positive represents an abnormal cycloplegic refractive error according to the 2013 American Association of Pediatric Ophthalmology and Strabismus Vision Screening Committee criteria.
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