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Changes in corneal high-order aberrations and anterior chamber after glaucoma surgery using Pentacam

Poster Details

First Author: J.Park SOUTH KOREA

Co Author(s):    J. Yoo   B. Kim   S. Kim   Y. Han   I. Jung  

Abstract Details


: To evaluate changes in corneal keratometry, high-order aberrations (HOAs) and the anterior chamber after trabeculectomy and Ahmed glaucoma valve (AGV) implantation using Pentacam (Occulus Inc., Germany).


Gyeongsang National University, Jinju, Korea


Forty eyes of 40 patients who underwent trabeculectomy or AGV implantation from July 2011 to May 2012 were retrospectively reviewed. Corneal keratometry, central corneal thickness, anterior chamber depth, anterior chamber volume, and higher-order aberrations were measured using Pentacam preoperatively and at 3 months after surgery.


The mean age of patients who underwent trabeculectomy and AGV implantation was 56.65 ±14.34 and 58.85 ±10.85 years, respectively. Visual acuity showed no significant decrease after surgery in both groups compared to preoperative values. Compared with preoperatively, the spherical aberration was significantly decreased from 0.11 ±0.06 ?m to 0.01 ±0.07 ?m in the AGV implantation group (P = 0.011). But, there were no significant differences in corneal keratometry, anterior chamber depth, anterior chamber volume, central corneal thickness, total RMS, trefoil, and coma after both surgeries.


Postoperative corneal keratometry and anterior chamber paraments did not change significantly compared to preoperative values in glaucoma patients after performing trabeculectomy or AGV implantation. Most of high-order aberrations that affected quality of vision were not change except spherical aberration in the AGV implantation group.

Financial Disclosure:


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