Table 4.
Initial VA |
Final VA |
||||||||
---|---|---|---|---|---|---|---|---|---|
Authors | Year | Total eyes | Progressive form (%) | ≥ 20/30 20/30-20/70 ≥ 20/70 | ≥ 20/30 20/30-20/70 ≥ 20/70 | ||||
Sanders MD26 | 1971 | 2 | 2 | 1 | 0 | 1 | 0 | 0 | 2 |
Boghen and Glaser1 | 1975 | 34 | 11 (32%) | not given | not given | ||||
Shults WT27 | 1977 | 1 | 1 | not given | not given | ||||
Hayreh SS3 | 1981 | 4 | 1 (25%) | 1 | 0 | 0 | 1 | 0 | 0 |
Beck RW et al.28 | 1983 | 4 | 3 | 2 | 1 | 0 | 1 | 0 | 2 |
Lavin and Ellenberger29 | 1983 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
Borchert and Lessell30 | 1988 | 11 | 11 | 8 | 3 | 0 | 1 | 4 | 6 |
Kline LB31 | 1988 | 6 | 6 | 5 | 0 | 1 | 0 | 0 | 6 |
Mutlukan and Cullen32 | 1990 | 1 | 1 | not given | not given | ||||
Arnold and Hepler2 | 1994 | 27 | 6 (22%) | 4 | 0 | 2 | 1 | 2 | 3 |
Purvin V et al.9 | 2004 | 24 | 7 (29%) | not given | not given | ||||
Janaky M et al.33 | 2005 | 3 | 1 | not given | 0 | 0 | 1 | ||
Contreras I et al.10 | 2007 | 27 | 4 (15%) | not given | not given | ||||
Rebolleda and Munoz-Negrete34 | 2009 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 |
Arnold AC et al.11 | 2013 | 294 | 119 (40%) | not given | not given | ||||
Present study | 17 | 4 (24%) | 4 | 0 | 0 | 1 | 1 | 2 |
VA = visual acuity;