Year | Author | Blind/total (eyes) | Blindness rate (%) |
---|---|---|---|
1941 | Blegvad24 | 4/12 | 33 |
1950 | Vesterdal25 | 23/62 | 37 |
1958 | Edstrom26 | 7/24 | 29 |
1966 | Laaksonen27 | 13/54 | 24 |
1969 | Schaller28 | 6/16 | 38 |
1970 | Calabro29 | 1/13 | 8 |
1974 | Smiley21 | 34/83 | 41 |
1975 | Key30 | 32/85 | 38 |
1977 | Chylack17 | 14/52 | 27 |
1977 | Cassidy23 | 10/96 | 10 |
1977 | Kanski19 | 55/223 | 25 |
1987 | Wolf5 | 20/89 | 22 |
1989 | Sherry1 | 0/13 | 0 |
1995 | Gori11 | 0/34 | 0 |
1997 | Dana7 | 19/76 | 25 |
2001 | This study | 17/275 | 6 |