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Abstract #6051 Published in IGR 2-2
Motion perception of cones by equiluminous vertical bar testing in glaucoma
Gu B; Wu D; Liang JChinese Ophthalmic Research 2000; 18: 162-164
OBJECTIVE: To study the change of motion perception from three kinds of cones by vertical lines motion testing in primary open angle glaucoma (POAG). METHODS: Motion perceptions of B, G and R cones of 28 patients (51 eyes) with POAG were isolated by 48 blue, green and red vertical lines displayed on the yellow, purple and blue-green background, respectively, and kept equiluminance between stimulus and background. Eight vertical lines stimulus of those had two kinds of moving forms: displacement and flickering movement. The luminance of moving lines and background were all 20 cd/m2. The displacement threshold and flickering threshold from B, G and R cones were examined in eight sites. RESULTS: The displacement threshold and flickering threshold from B, G and R cones in patients with POAG aged 50 years and younger than 50 years were compared with the age-matched normal groups. The results showed that displacement threshold and flickering threshold of motion perception from B, G and R cones in POAG patients older than 50 and younger than 50 years groups were all damaged compared with the normal group (p < 0.001). CONCLUSIONS: Motion perception may reveal visual nerve damage in patients with POAG. It has potential diagnostic value to detect early optic nerve damages in POAG patients. LA: Chinese
Dr. B. Gu, Zhongshan Ophthalmic Center, Sun Yat-sen University of Medica; Sciences, Guangzhou 510060, China
Classification:
6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
