[Ophthalmologic examination of the mentally retarded at a central institution].

In 1985-86 an ophthalmologist screened 221 patients, ranging in age from six to 81, at Naerlandheimen central institution for mentally handicapped. The screening showed an alarming incidence of eye disease in this group, regardless of the etiology of the mental handicap or the patient's age. Only 44 patients had completely normal eye status without errors of refraction. 40 patients had errors of refraction only and eight had presbyopia only, but otherwise normal findings. 129 had one or more eye anomalies or diseases. There was a large incidence of cataract (52 cases), keratoconus (21 cases), strabismus (59 cases) and conjunctivitis or blepharitis (17 cases). The result emphasizes the importance of close and frequent examination of the status of the eyes of mentally retarded people throughout their lifespan.