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Shortened Measurement Time of Functional Visual Acuity for Screening Visual Function.
- Source :
-
Journal of Ophthalmology . 9/10/2019, p1-7. 7p. - Publication Year :
- 2019
-
Abstract
- The functional visual acuity test which is the average of the visual acuities measured during a specific time frame (standard, 60 seconds) has been used recently to assess the visual function in various conditions. The availability of a shorter version of the functional visual acuity test promises to be patient friendly in that it is a simple screening test performed in a shorter period of time than the standard test. The results of measurements of the FVA test between the 30-second measurement time (short-version FVA test) and the standard 60-second measurement are compared, and the feasibility of the short-version FVA test instead of the standard FVA test is investigated. Twenty-eight healthy volunteers (25 men and 3 women) were enrolled in this prospective observational study. All subjects underwent measurement of the binocular distance-corrected visual acuity and the binocular distance-corrected FVA with the 60-second and 30-second measurement times. The interchangeability of the corrected-distance FVA, maximal VA, visual maintenance ratio, and average response time in the short-version and the standard FVA tests was evaluated using the Bland–Altman method, and the results showed agreements of the two tests except for the minimal VA. The short-version FVA test is equivalent to the standard method except for evaluating the visual acuity fluctuations and promises to be a simple visual screening test that can be performed in a shorter time. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LONGITUDINAL method
*SCIENTIFIC observation
*TIME
*VISION testing
*VISUAL acuity
Subjects
Details
- Language :
- English
- ISSN :
- 2090004X
- Database :
- Academic Search Index
- Journal :
- Journal of Ophthalmology
- Publication Type :
- Academic Journal
- Accession number :
- 138538786
- Full Text :
- https://doi.org/10.1155/2019/8950418