[The comparative study of the macular light threshold in the normal and low visual acuity people].
OBJECTIVE
To test the macular light threshold (MLT) and the change of macular light sensitivity (MLS) in the normal and low visual acuity people.


METHODS
MLT of 93 eyes of the normal and 76 eyes of low visual acuity people was measured with macular threshold test of Humphrey Field Analyzer-640.


RESULTS
1. MLT increases with age, there is a negative correlation between MLS and age 2. MLT of low visual acuity people is significantly higher than that of the normal visual acuity people in the same age group; 3. No significant difference of MLT was found in the four quadrants of visual field in the same age group; 4. No significant difference of MLT was found between male and female.


CONCLUSIONS
MLS of the normal visual acuity people is superior to that of the low visual acuity people; MLS decreases with age.
Chen
J
J
Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou, China.
Chen
H
H
Lu
P
P
Liu
J
J
Ge
J
J
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008027:Light; D008266:Macula Lutea / Q000502:physiology / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D012684:Sensory Thresholds; D015354:Vision, Low / Q000503:physiopathology*