Functional acuity contrast sensitivity test results assesment in healthy young patients

Abstract

The purpose of the work. To determine functional acuity contrast sensitivity test result in healthy young patients. Material and methods. We examined 35 (67 eyes) patients in the age group from 29 to 39 (Ist group) 37 (74 eyes) patients in the age group from 40 to 49 years age group (2nd group). General ophthalmological examination was used for exlusion other eye diseases. Functional acuity contrast sensitivity was measured employing a Ginsburg Box, VSCR- CST-6500 at the day time and at the night time with and without glare. The best corrected visual acuity was used for functional acuity contrast sensitivity test evaluation. Results. Best-corrected visual acuity was not statistically significant in the Ist and IInd groups: 1.0 vs. 1.0 ; (?0.05). Functional acuity contrast sensitivity in group II was lower than in group I at the night time with-out glare: in 3 spatial frequency p=0.001, 12 spatial frequency (p=0.05) and 18 spatial frequency (p=0.01). At the night time with glare the results were worse in group II than I: in 1,5 spatial frequency (p=0.054), 12 spatial frequency (p=0.04) and at 18 spatial frequency (p=0.01. In the day time with glare in group II results were worse than I: in 1.5 spatial frequency (p=0.011), 12 spatial frequency (p=0.031) and in 18 spatial frequency (p=0.001). Conclusions. Functional acuity contrast sensitivity test results mostly decreased in high spatial frequencies in II group. Our results confirmed that degenerative changes in the neural characteristics of the visual system approximately start at the age of 40-ies.