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:: Volume 23, Issue 1 (10-2017) ::
3 2017, 23(1): 6-12 Back to browse issues page
Evaluation of Visual Field Changes after Trabeculectomy in ‎Patients with Glaucoma
M. Pakravan, M. Mostafavi , H. Esfadiari, M. Yaseri
Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Abstract:   (1216 Views)
Purpose: To evaluate visual field changes after trabeculectomy in patients with glaucoma.
Methods: In this retrospective study, 166 eyes of 166 patients with glaucoma (mean age 53.3±17.9), who underwent mitomycin C augmented trabeculectomy, were examined. The patients needed to have at least 3 reliable visual field before the surgery and 2 after the surgery. The data of biomicroscopic examination, intraocular pressure, visual field, best corrected visual acuity, and spherical correction of refractive error were extracted from their electronic data record. The results of this study showed changes in visual filed mean deviation as the main outcome measure. Secondary outcome measure was intraocular pressure, visual acuity, visual field pattern standard deviation, and visual field index.
Results: The mean post-operative IOP (13±5 mmHg) significantly decreased from the baseline values (19±6 mmHg) (P<0.001). Best corrected visual acuity significantly decreased from 0.1±0.25 at baseline to 0.23±0.36 LogMAR post-operatively (P<0.001). The mean of visual field mean deviation and pattern standard deviation increased from -6.68±7.36 to -9.14±7.96 dB and 5.19±3.50 to 6.11±3.74, respectively. The mean of visual field index was 82.62±21.88 preoperatively and decreased to 76.46±24.53 post-operatively.
Conclusion: Glaucoma is a progressive optic neuropathy that even persists after significant intraocular pressure reduction. This underlines the importance of examining the optic nerve and the field of vision after surgery.
Keywords: Glaucoma, Trabeculectomy, Visual Field
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Type of Study: Research | Subject: Ophthalmology
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Pakravan M, Mostafavi M, Esfadiari H, Yaseri M. Evaluation of Visual Field Changes after Trabeculectomy in ‎Patients with Glaucoma. 3. 2017; 23 (1) :6-12
URL: http://binajournal.org/article-1-916-en.html

Volume 23, Issue 1 (10-2017) Back to browse issues page
مجله چشم‌پزشکی بینا Bina Journal of Ophthalmology
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