• A glaucoma-screening examination was performed on 119 full-blooded Zuni Indians and 286 control subjects who were aged 40 years or older. The mean intraocular pressure (IOP) of the Zuni Indians was significantly lower than that of the control group, adjusted for age and sex differences, in both diabetic and nondiabetic subjects. The control group demonstrated an increasing IOP with age, while the Zunis did not. The prevalence of ocular hypertension was significantly greater in the control group than in the Zunis. The majority of the Zuni subjects with ocular hypertension had diabetes mellitus. None of the Zuni Indians who were screened had primary open-angle glaucoma and none had a family history of glaucoma.
Kass MA, Zimmerman TJ, Alton E, Lemon L, Becker B. Intraocular Pressure and Glaucoma in the Zuni Indians. Arch Ophthalmol. 1978;96(12):2212–2213. doi:10.1001/archopht.1978.03910060514008
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