Epidemiology of simple glaucoma and ocular hypertension.

Abstract

The techniques of epidemiology originated in the study of the factors determining the spread ofinfectious disease. To-day, the term can be taken to mean, in a broader sense, the elucidation by the study of population samples of the natural history of disease; the deter- mination of those factors which govern its manner of distribution; and the definition of the often elusive borderline between the normal and the diseased.