Central visual field defects in patients with glaucoma associated with poor stereoacuity
Glaucomatous central visual field defects may be associated with poor stereoacuity in patients experiencing non-severe visual field loss due to glaucoma, according to a study presented at the virtual Wills Eye Conference.
“Our study suggests that central field defects were associated with worse stereoacuity in patients with non-severe glaucomatous visual field loss,” Wendy W. Liu, MD, PhD, said.
Liu and colleagues conducted a cross-sectional study comparing near stereoacuity between 42 patients with glaucoma who had central visual field defects and 23 patients with glaucoma who did not. Patients with visual acuity better than 20/40 in both eyes, with less than a two-line difference in visual acuity between eyes and two reliable Humphrey visual fields on the same day with mean deviation in the worse eye better than –12 dB, were included. Patients with a history of amblyopia and eye pathologies other than glaucoma were excluded.
Patients with central visual field defects had statistically significantly worse median stereoacuity than patients with no defects (60 arc sec vs. 40 arc sec; P = .004) and were less likely to have normal stereopsis (P = .004).
“Patients with central visual field defects should be counseled regarding how depth perception difficulties may affect their daily living,” Liu said.
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Liu WW, et al. Stereoacuity and central visual field defects in glaucoma. Presented at: Wills Eye Conference; March 12, 2021 (virtual meeting).
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