N Gupta1, N Krishnadev, S J Hamstra, Y H Yücel. 1. Glaucoma and Nerve Protection Unit, Department of Ophthalmology and Vision Sciences, University of Toronto, St Michael's Hospital, Toronto, Ontario, Canada, M5B 1W8. guptan@smh.toronto.on.ca
Abstract
AIM: To investigate depth perception in glaucoma suspects compared to glaucoma patients and controls. METHODS: Glaucoma suspects (n = 16), patients (n = 18), and normal age matched controls (n = 19) aged 40-65 years were prospectively evaluated for depth perception deficits using the Frisby test. Stereoacuity was measured by stereothreshold in seconds of arc for each group. RESULTS: Glaucoma suspects showed significantly increased mean stereothreshold compared to age matched normals (144.1 (SE 35.2) v 26.6 (3.7) seconds of arc; p = 0.0004). The mean stereothreshold in glaucoma patients was also increased compared to age matched normals 148.1 (33.8) v 26.6 (3.7) seconds of arc; p = 0.0004). CONCLUSIONS: Glaucoma suspects show depth perception deficits. The impaired stereovision in glaucoma suspects suggests that binocular interactions can be disrupted in the presence of normal visual fields by standard achromatic automated perimetry.
AIM: To investigate depth perception in glaucoma suspects compared to glaucomapatients and controls. METHODS:Glaucoma suspects (n = 16), patients (n = 18), and normal age matched controls (n = 19) aged 40-65 years were prospectively evaluated for depth perception deficits using the Frisby test. Stereoacuity was measured by stereothreshold in seconds of arc for each group. RESULTS:Glaucoma suspects showed significantly increased mean stereothreshold compared to age matched normals (144.1 (SE 35.2) v 26.6 (3.7) seconds of arc; p = 0.0004). The mean stereothreshold in glaucomapatients was also increased compared to age matched normals 148.1 (33.8) v 26.6 (3.7) seconds of arc; p = 0.0004). CONCLUSIONS:Glaucoma suspects show depth perception deficits. The impaired stereovision in glaucoma suspects suggests that binocular interactions can be disrupted in the presence of normal visual fields by standard achromatic automated perimetry.
Authors: Dawn Y Lam; Paul L Kaufman; B'Ann T Gabelt; Eleanor C To; Joanne A Matsubara Journal: Invest Ophthalmol Vis Sci Date: 2003-06 Impact factor: 4.799
Authors: Michael Dattilo; Caroline Vasseneix; Beau B Bruce; Kevin R Sitko; Valerie Biousse; Nancy J Newman; Jason H Peragallo Journal: Ophthalmology Date: 2016-12-13 Impact factor: 12.079