Previous works on development of visual acuity in treated amblyopic eyes
| Deterioration | |||||||
|---|---|---|---|---|---|---|---|
| Author | Follow up time | Age at follow up | Sample size | Improvement | Stable | 1–2 lines | >2 lines |
| – = not stated | |||||||
| Gregersen et al (1965)9 | “10 years” | 16.9 years | 53 | – | 24% | 53% | 23% |
| Leydhecker et al (1967)10 | “8–10 years” | – | 22 | – | 5% | 95% | – |
| Malik et al (1975)13 | 21.4 months | 13.4 years | 50 | – | 46% | 24% | 30% |
| Schröpfer et al (1975)11 | “7–10 years” | – | 100 | – | 12% | 88% | – |
| Sparrow et al (1977)14 | 5.4 (1.8) years | – | 30 | – | 66% | 28% | 7% |
| Ching et al (1986)6 | “5 years” | 14 years | 23 | – | 78% | 22% | – |
| Scott et al (1988)7 | – | 15.9 years | 89 | 0% | 75% | 17% | 8% |
| Levartovsky et al (1995)12 | 6.4 (1.8) years | 13.8 (2.4) years | 94 | – | 47% | 53% | – |
| Leiba et al (2001)8 | 21.5 (2.1) years | 29.0 (2.1) years | 54 | 17% | 50% | 33% | – |
| Present study | 10.4 (1.9) years | 19.2 (1.6) years | 24 | 33% | 50% | 17% | 0% |









