الفهرس 
Change in corneal Astigmatism following Subscleral trabeculectomy in treatment of glaucoma
CONTENTSOnly 14 pages are availabe for public view
 |  | from | 97 |  |  |
| | | from | 97 | | |
Abstract
Background: Induced changes in corneal curvature following filtration surgery results in altered visual function particularly when changes are marked and continue beyond the first few postoperative months. Objectives: The aim of this study is to determine and evaluate surgically induced astigmatism following subscleral trabeculectomy with MMC in addition to investigating correlations between postoperative astigmatism, particularly with the postoperative IOP. Patients and methods: This study was conducted on 30 patients (both sex, {u2265} 21 years old) with the diagnosis of primary glaucoma uncontrolled on maximally tolerated medical therapy and was advised trabeculectomy filtration surgery. Pre and post-operative measurements was done including BCVA using Snellen{u2019}s chart, refraction using TOMEY RC-5000 autorefractometer, IOP measurement using Goldmann’s applanation tonometer, fundus examination using slit lamp biomicroscopy and corneal topography using SCHWIND SIRIUS. Results: A significant reduction in BCVA (P value 0.001) and IOP (P value 0.000) postoperatively, there was a significant increase in the postoperative astigmatic correction (P value 0.001) and the mean K-readings at 3 months postoperative were higher than there preoperative values and this was statistically significant (P value 0.001). Conclusion: Subscleral trabeculectomy with MMC is significantly effective in lowering the IOP. However, visual function was significantly altered due to the induced considerable postoperative astigmatism