REGRESSION-ANALYSIS OF VISUAL-FIELD PROGRESSION IN LOW TENSION GLAUCOMA

Eighty four patients (168 eyes) with low tension glaucoma were retrospectively reviewed (mean follow-up was 28 months). The mean age was 66 years, and 69% were females. Regression analysis of their automated Humphrey fields (a mean of eight fields per eye) showed progression in 50% of patients and in 37% of eyes. There was no statistically significant difference between patients with progression and non-progression with respect to age (p < 0.5) or intraocular pressure (p < 0.5). Visual field defects were located most frequently in the superior hemifield in both groups of patients. A considerable proportion of patients had advanced field loss at the time of diagnosis.