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Corneal curvature changes after canaloplasty

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Session Details

Session Title: Glaucoma I

Session Date/Time: Monday 07/09/2015 | 08:00-10:30

Paper Time: 09:58

Venue: Room 10

First Author: : M.Lazicka Galecka POLAND

Co Author(s): :    A. Kaminska   T. Galecki   J. Szaflik   J. Szaflik           

Abstract Details

Purpose:

To analyze the corneal curvature changes after canaloplasty.

Setting:

Department of Ophthalmology Medical University of Warsaw, Poland

Methods:

Prospective nonrandomized evaluation of 84 consecutive eyes of 60 patients with open-angle glaucoma undergoing canaloplasty Best corrected visual acuity (BCVA), IOP by Goldman applanation tonometry, astigmatism value assessed, number of antiglaucoma medication used and secondary antiglaucoma procedure were assessed preoperatively and at 1 day, 7 days,4 weeks and 3, 6, 12 months postoperatively. Patients were divided into 3 groups according to surgically induced astigmatism value in the first postoperative day: group 1 (14 eyes) with astigmatism from 0 to <1,5 CYL, group 2 (42 eyes) with astigmatism from 1,5 to 3 CYL, group 3 (27 eyes) with astigmatism >3 CYL.

Results:

The mean preoperative IOP was: group 1 – 18,1mm Hg , group 2 – 21,75 mmHg, group 3 – 19,5mmHg . The mean IOP decreased to 14,3 mmHg, 13,8 mmHg, 11,8 mmHg at 12 months in group 1, 2 and 3 respectively. Mean astigmatism preoperatively was 0,6 CYL in group 1; 0,8 CYL in group 2 and 0,86 CYL in group 3,. Thereafter the astigmatism reach 0,75 CYL in group 1, 1,39 CYL in group 2 and 2,5 CYL in group 3 at 4 weeks. Six months after canaloplasty, mean astigmatism reached the preoperative range of 0,61 CYL in group 1, 0,82 CYL in group 2 and 0,98 CYL in group 3. It remained stable 12 months postoperatively.

Conclusions:

The surgically induced astigmatism after Canaloplasty is present in 91,3 % of cases, reaches maximum at 1 day postoperatively, in most cases reaches preoperative values at 6 months and remains stable thereafter. Patients with the highest postoperative astigmatism had the lowest IOP at 12 months. None of the patients from the group with the highest amount of postoperative astigmatism required antiglaucoma treatment or additional antiglaucoma procedures. The amount of surgically induced astigmatism on the first postoperative day correlate inversely with IOP at 12 months.

Financial Interest:

NONE

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