[The test of motion perception in normal subjects].
OBJECTIVE
To study the properties of motion perception (MP) of normal Chinese subjects.


METHODS
MPs were tested for 56 cases (112 eyes) of normal subjects, their ages ranging from 11 years to 68 years, by using vertical moving bars generated on VGA monitor in a PC compatible computer.


RESULTS
MPs were affected by age when the bars moved horizontally for 2 pixels, the ratios of MP were increased with age growing from 10 year group to 30 year group, then the ratios of MP were gradually decreased from 40 year group. MPs were not affected by age under the horizontally moving conditions of 4 pixels and 6 pixels and > 40 Hz flicker movement. There were no relationships between either MP and sex or MP and eye side difference.


CONCLUSIONS
The characteristics of MP are determined and the normal reference values are provided in normal Chinese subjects.
Wang
J
J
Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou.
Wu
D
D
Fitzke
F W
FW
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009039:Motion Perception; D012016:Reference Values