01 1-1 1-2 1-3 1-4 1-5 1-6 1-7
1-1 (partial sight) (visual impairment) 20 30 (subnormal vision) (low vision) 20 50 Fonda Faye Faye 1973 (WHO) 0.3 0.05 20 0.3 1992 7 1996 7 2
0 1 (visual disability) (visual handicap) 1-2 1637 Rene 1791 3
1805 Thomas 1829 Braille 1862 Snellen 1897 1910 Rodgin 1913 Perkins Edward 1924 1934 1935 William 1953 George Hellinger Gerald Fonda 1954 1973 (WHO) 1976 IanBailey Jan LogMar 1979 1992 1996 (WHO) 1986 2011 4
0 1 10 2011 1984 1-3 (WHO) (WHO)1973 (WHO) 1973 1-1 1-1 (WHO) 1973 1 0.3 0.1 2 0.1 0.05 3 3 0.05 0.02 1 4 0.02 5 10 5 3 5 4 5
(WHO) 1992 (WHO) 1992 6/18(0.3) 10 1.0 6
0 1 1-4 (WHO)1973 4,000~4,500 3 1.35 5 2002 1.61 1.24 3,700 2014 2.85 2.46 3,900 75% 25% (WHO) 2014 82% 50 90% 15 7
2/3 (WHO) 20 90 (WHO) 1-5 8
0 1 9
10
0 1 11
1-6 1953 Fonda 12
0 1 1-7 13
14
02 2-1 2-2
2-1 1974 22 2-1 16
0 2 2-1 1. (prevalence rate) = 1,000 100,000/10 65 65 65 65 2. (incidence rate, morbidity) 17
= 100,000/10 1,000 1. 0.2% 1% 5% 1,000 120 12 70% 85% 18
0 2 2. 65 77% Michon 80 60~69 10.1 (WHO) 2020 1.5 3. 4. (54.4%) 60% 5. 19
6. 1. 20 (CSR) 2. 14.98% 3. AMD AMD AMD (AMD) AMD 20