TY - JOUR
T1 - Improved stereoacuity
T2 - An indication for unilateral cataract surgery
AU - Kwapiszeski, B. R.
AU - Gallagher, C. C.
AU - Holmes, J. M.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1996
Y1 - 1996
N2 - Purpose: To determine whether stereoacuity is an objective indicator of functional improvement following unilateral cataract surgery. Setting: Department of Ophthalmology, Loyola University Chicago, Maywood, Illinois. Methods: Seventeen consecutive patients with unilateral cataracts (8 pseudophakic, 9 phakic in contralateral eye) were studied prospectively. Best corrected distance visual acuity in the eye with cataract ranged from 20/40 to 20/400. Distance acuity in the eye without cataract was 20/20 or 20/25. All patients had cataract surgery with posterior chamber intraocular lees implantation. Stereoacuity was measured preoperatively and postoperatively; at near by Titmus test (TT) and at distance by B-VAT BVS random dot E (BVRDE) and contour circles (BVC). Nonparametric Spearman rank correlation and Wilcoxon rank tests were used for analysis. Results: Preoperatively, reduced near visual acuity in the cataractous eye correlated with reduced near stereo (TT), r = .6, P = .01. Postoperatively, near stereoacuity improved in all but one patient, from a median of 200 seconds of arc (sec arc) to 40 sec arc (P = .004); distance stereoacuity improved in all but two patients from a median of unrecordable to 120 sec arc (BVC) (P = .006). Preoperatively none of the patients could see the largest distance BVRDE target, whereas postoperatively 4 of 17 had BVRDE stereoacuity of 120 to 240 sec arc (P = .06). Conclusions: Patients with unilateral cataracts have reduced stereoacuity, correlating with their reduced monocular visual acuity. In this study, distance and near stereoacuity improved postoperatively. Decreased stereoacuity may provide an indication for unilateral cataract surgery.
AB - Purpose: To determine whether stereoacuity is an objective indicator of functional improvement following unilateral cataract surgery. Setting: Department of Ophthalmology, Loyola University Chicago, Maywood, Illinois. Methods: Seventeen consecutive patients with unilateral cataracts (8 pseudophakic, 9 phakic in contralateral eye) were studied prospectively. Best corrected distance visual acuity in the eye with cataract ranged from 20/40 to 20/400. Distance acuity in the eye without cataract was 20/20 or 20/25. All patients had cataract surgery with posterior chamber intraocular lees implantation. Stereoacuity was measured preoperatively and postoperatively; at near by Titmus test (TT) and at distance by B-VAT BVS random dot E (BVRDE) and contour circles (BVC). Nonparametric Spearman rank correlation and Wilcoxon rank tests were used for analysis. Results: Preoperatively, reduced near visual acuity in the cataractous eye correlated with reduced near stereo (TT), r = .6, P = .01. Postoperatively, near stereoacuity improved in all but one patient, from a median of 200 seconds of arc (sec arc) to 40 sec arc (P = .004); distance stereoacuity improved in all but two patients from a median of unrecordable to 120 sec arc (BVC) (P = .006). Preoperatively none of the patients could see the largest distance BVRDE target, whereas postoperatively 4 of 17 had BVRDE stereoacuity of 120 to 240 sec arc (P = .06). Conclusions: Patients with unilateral cataracts have reduced stereoacuity, correlating with their reduced monocular visual acuity. In this study, distance and near stereoacuity improved postoperatively. Decreased stereoacuity may provide an indication for unilateral cataract surgery.
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U2 - 10.1016/S0886-3350(96)80039-3
DO - 10.1016/S0886-3350(96)80039-3
M3 - Article
C2 - 8733847
AN - SCOPUS:0030007355
SN - 0886-3350
VL - 22
SP - 441
EP - 445
JO - Journal of Cataract and Refractive Surgery
JF - Journal of Cataract and Refractive Surgery
IS - 4
ER -