Juvenile glaucoma, race, and refraction.

Of 68 patients who presented between the ages of 10 and 35 years with elevated intraocular pressure, 25 were classified as juvenile ocular hypertension and 43 as juvenile primary open-angle glaucoma. Blacks constituted a greater proportion of the primary open-angle glaucoma patients (47%) than of the ocular hypertensives (20%) and in both groups presented at younger ages than did whites. Myopia was present in 59% of the ocular hypertensives and 73% of the primary open-angle glaucoma patients, of whom 39% had more than 6 diopters of myopia. All eyes of black patients with more than 3 diopters of myopia had glaucomatous defects compared with 52% of such eyes of white patients. Our data suggest that myopia is strongly associated with juvenile open-angle glaucoma and that young black patients with elevated intraocular pressure, especially when myopic, are more susceptible to glaucomatous damage than are whites.