Table 2

Previous works on development of visual acuity in treated amblyopic eyes

Deterioration
AuthorFollow up timeAge at follow upSample sizeImprovementStable1–2 lines>2 lines
– = not stated
Gregersen et al (1965)9“10 years”16.9 years5324%53%23%
Leydhecker et al (1967)10“8–10 years”225%95%
Malik et al (1975)1321.4 months13.4 years5046%24%30%
Schröpfer et al (1975)11“7–10 years”10012%88%
Sparrow et al (1977)145.4 (1.8) years3066%28%7%
Ching et al (1986)6“5 years”14 years2378%22%
Scott et al (1988)715.9 years890%75%17%8%
Levartovsky et al (1995)126.4 (1.8) years13.8 (2.4) years9447%53%
Leiba et al (2001)821.5 (2.1) years29.0 (2.1) years5417%50%33%
Present study10.4 (1.9) years19.2 (1.6) years2433%50%17%0%