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HEREDITARY DISEASES OF THE EYE IN A STUDY OF BLIND AND PARTIALLY SIGHTED
Author(s) -
ODLAND MAGNUS
Publication year - 1981
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1981.tb02990.x
Subject(s) - partially sighted , medicine , hereditary diseases , blindness , population , visually impaired , disease , optometry , pathology , environmental health
This study is based on an investigation of all blind and partially sighted persons living in the county of Hordaland, Norway with a population of 379 734. It was found that 1441 were visually impaired with a vision of 6/18 or less or 0.38% of the total population. There was a high frequency of hereditary diseases (29.6%). 336 had other family members with the same type of eye diseases, and 492 had someone in the family with an eye disease which differed from the one they had themselves. Blood relation between parents was found in 139 cases. Many large families with hereditary diseases, of which some are quite rarly seen, were discovered.