TRAUMA 383 TABLE 9-1. ESTIMATED NUMBER AND PERCENTAGE OF TOTAL BLIND EYES AND PERSONS WITH AT LEAST ONE BLIND EYE FOR FIVE IMPORTANT CAUSES OF BLINDNESS (NBS 1981) Estimated Number of Persons Estimated Number of Eyes Percentage of Total Blind Eyes Cause (in rank order) Sample Na Cataract and sequelae Trauma. Other infections Phthisis, undetermined etiology Corneal scars, undetermined etiology Other causes and undetermined 503 99 82 176,348 35,748 28,553 253,327 37,216 33,137 54.0% 7.9 7.1 1. 2. 3. 4. 48 16,986 21,183 4.5 5. 47 16,352 17,748 3.8 241 85,669 106,245 22.7 Total 4 8,856 100.0 aBilateral blind with different causes in each eye are mutually exclusive assignment of cause was used. counted twice, i.e., no TABLE 9-2. ESTIMATED INCIDENCE OF EYE TRAUMA BY TYPE OF TRAUMA (NBS 1981) Percentage of Total Population in Nepal Type of Trauma Sample N Estimated Population No history or signs of trauma (either eye) Trauma without visual impairment (either eye) Trauma with visual impairment (either eye) Trauma blind (unilateral) Trauma blind (bilateral) Subtotal Missing data 39,053 13,883,624 99.14% 209 74,741 0.53 28 91 8 39,389 498 9,893 32,895 2,853 14,004,006 169,076 0.07 0.24 0.02 100.00 14,173,082 Total 39,887 100.00 Source: PFR9.001 AN.2
