Effectiveness of a smartphone application for testing near visual acuity
نویسندگان
چکیده
منابع مشابه
Screening for Significant Refractive Error Using a Combination of Distance Visual Acuity and Near Visual Acuity
PURPOSE To explore the effectiveness of using a series of tests combining near visual acuity (NVA) and distance visual acuity (DVA) for large-scale screenings for significant refractive error (SRE) in primary school children. METHOD Each participant underwent DVA, NVA and cycloplegic autorefraction measurements. SREs, including high myopia, high hyperopia and high astigmatism were analyzed. C...
متن کاملComputerized method of visual acuity testing: adaptation of the amblyopia treatment study visual acuity testing protocol.
PURPOSE To report a computerized method for determining visual acuity in children using the Amblyopia Treatment Study visual acuity testing protocol. METHODS A computerized visual acuity tester was developed that uses a programmed handheld device that uses the Palm operating system (Palm, Inc, Santa Clara, California). The handheld device communicates with a personal computer running a Linux ...
متن کاملVisual acuity testing in young children.
Various tests are in common use for determining the visual acuity (VA) in children, and this paper reports the results of an investigation into some of them in regard to their accuracy, acceptability, and comparability. Early assessment of the VA is desirable in order to detect any abnormality, but through lack of co-operation and comprehension, it cannot usually be carried out until the age of...
متن کاملDevelopment and Validation of a Smartphone-Based Visual Acuity Test (Peek Acuity) for Clinical Practice and Community-Based Fieldwork.
IMPORTANCE Visual acuity is the most frequently performed measure of visual function in clinical practice and most people worldwide living with visual impairment are living in low- and middle-income countries. OBJECTIVE To design and validate a smartphone-based visual acuity test that is not dependent on familiarity with symbols or letters commonly used in the English language. DESIGN, SETT...
متن کاملAnomaly in visual acuity testing in children.
A popular and widely used method of visual acuity testing of young children is criticized on the grounds that it often fails to elicit amblyopia. The results obtained when the visual acuity of thirty amblyopic children was tested by different methods show that monotype testing gives an apparent acuity averaging three grades better than those derived from the standard Snellen's test.
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ژورنال
عنوان ژورنال: Eye
سال: 2015
ISSN: 0950-222X,1476-5454
DOI: 10.1038/eye.2015.138