Posters

Quantitative visual tests with primary open-angle glaucoma patients according to three different lights

Poster Details

First Author: C.Lee SOUTH KOREA

Co Author(s):    J. Shin                    

Abstract Details

Purpose:

Glaucoma is a chronic, progressive, heterogenous optic neuropathy which leads to visual field loss, disabilities and irreversible blindness if not diagnosed and treated at the right time. Glaucoma is deeply related life of quality and vision is important factors of Life of quality. To comparing quantitative vision test such as visual acuity, contrast test and color assessment in primary open angle glaucoma patients according to 3 different light systems.

Setting:

Department of Ophthalmology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea

Methods:

Cross sectional study of 20 eyes of 20 patients with POAG. Three different light systems consist of 3 band fluorescent lamp(CRI 80), general LED(CRI 75)and quantum dot LED (CRI>95). All light had same illuminance as 230lux to exclude illuminance effect. Visual testing included best corrected visual acuity with ETDRS chart, CSV-1000E contrast test and color test with Farnsworth Munsell 100-hue test.

Results:

Mean of patient’s MD was -10.5±9.0dB. There was no significant difference in BCVA according to 3 light system(p=0.92), There were neither significant difference in detail contrast test (A,B,C,D) according to 3 light system.(p=0.98, p=0.93, p=0.86, p=0.70). Score of color test with quantum dot LED was lower than 3 band fluorescent lamp, general LED, but there was no significant difference between 3 light system(ANOVA, p=0.08). However score of color with quantum dot LED was significantly lower than general LED and 3 band fluorescent lamp(p=0.03, 0.047)

Conclusions:

POAG patients did not show significant difference visual acuity score and contrast test score ,which are expressed as black and white symbol, according to different light system. However POAG patient under quantum dot LED(CRI>95) could well distinguish color difference than with other light system. It would be color rendering index(CRI) that is a quantitative measure of ability of a light source to reveal the colors of various objects faithfully in comparison with an ideal or natural light source. Therefore high CRI light system may improve life of quality of glaucoma patients.

Financial Disclosure:

None