Abstract
A review of the clinical records of 1,543 American Indians revealed that malignant melanoma occurslesscommonly among American Indians than in the general population (not a single case in the records reviewed); that primary open-angle glaucoma and inferotemporal dialysis occur with approximately thesamefrequency as in the general population; and that trachoma, retinoblastoma, phakomorphic angle-closure glaucoma, and iridocyclitis associated with active pulmonary tuberculosis occurmorecommonly; retinoblastoma had a strikingly greater prevalence, occurring six times more frequently than in the general population. Mature cataracts and phakolytic glaucoma may occur more commonly in Indians, and some diseases have a tribal predilection.

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