Early diagnosis of glaucoma

Abstract. In a group of 46 patients with moderately elevated intraocular pressure (22–30 mmHg), signs of early glucoma were found in half of them after a follow‐up of 5–7.5 years. Most of the patients showed only a small increase in optic disc cupping revealed by stereophotography. Initial IOP higher than 25 mmHg, large pressure differences between the two eyes, large diurnal pressure variation, occurrence of pseudoexfoliation, pressure drop of more than 8 mmHg after topical epinephrine, and a pressure rise of more than 4 mmHg after water loading were more frequent in the group of patients who developed signs of glaucoma. Age, a positive family history, occurrence of cardiovascular disease, and the cup/disc ratio did not differ in the two groups of patients. The pilocarpine test and steroid provocation had no predictive value. Surprisingly, there was a small drop of pressure after topical steroids in 6 of the 8 patients with pseudoexfoliation.

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