Contrast sensitivity in amblyopia.
Contrast sensitivity function (CSF) for sinusoid gratings of varying spatial frequencies was determined for each eye of 21 cases with unilateral amblyopia. The CSF of all amblyopic eyes, except one, showed reduced sensitivity when compared with the non-amblyopic eye of the same person. The curve showed reduction more significantly at middle and high spatial frequencies. The cut-off frequency was shifted toward lower spatial frequencies. The relationship between CSF and various degree of amblyopia was also discussed.
Yang
S
S
Zhongshan Ophthalmic Centre, Sun Yat-sen University of Medical Sciences, Guangzhou, China.
Wu
D Z
DZ
Tian
N
N
Wu
L
L
D000293:Adolescent; D000328:Adult; D000550:Amblyopia / Q000209:etiology / Q000503:physiopathology*; D015858:Anisometropia / Q000150:complications; D002648:Child; D015350:Contrast Sensitivity; D005260:Female; D006801:Humans; D008297:Male; D012030:Refractive Errors / Q000150:complications; D013285:Strabismus / Q000150:complications