[Change of cone's motion perception in patients with primary open angle glaucoma].
OBJECTIVE
To assess the change of cone's motion perception in primary open angle glaucoma (POAG).


METHODS
Equi-luminance random dots moving test was used to determine the change of motion perception of blue, green and red cones in 51 eyes with POAG. To isolate the three kinds of cones, the blue, green and red visual targets were displayed on the yellow, purple and blue-green background respectively.


RESULTS
The direction discrimination thresholds of motion perception from blue, green and red cones were all damaged in POAG compared to that of the normal group, and among them the blue cone was the most obviously damaged.


CONCLUSIONS
These findings indicate that cone's motion perception, especially the blue cone's, may reveal pre-clinical visual nerve damage in POAG.
Gu
B
B
Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China.
Wu
D
D
Liang
J
J
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D003119:Color Perception Tests; D005260:Female; D005902:Glaucoma, Open-Angle / Q000473:pathology / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009039:Motion Perception / Q000502:physiology*; D017949:Retinal Cone Photoreceptor Cells / Q000473:pathology / Q000503:physiopathology*; D012165:Retinal Ganglion Cells / Q000473:pathology