January 08, 2003
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Glaucoma more likely in myopes than emmetropes, hyperopes: Beaver Dam study

MADISON, Wisc. — Myopia was associated with higher intraocular pressure and prevalent glaucoma in data from a study in a defined white population.

Tien Yin Wong, MD, PhD, and others analyzed data from the Beaver Dam Eye Study, which includes 4,926 people between the ages of 43 and 86. All patients received a standardized assessment of refraction, IOP and glaucoma at baseline, and IOP was remeasured 5 years later.

A myopic refraction was correlated with increasing IOP at baseline (P < .001). After controlling for age and gender, people with myopia were 60% more likely to have prevalent glaucoma than those with emmetropia (defined for this study as having a refraction of -0.75 D to +0.75 D). People with hyperopia were 40% more likely to have incident ocular hypertension than those with emmetropia. Myopia was not related to incident ocular hypertension.

The study is published in the January issue of Ophthalmology.