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Effects of temporal incision on corneal astigmatism and intraocular pressure reduction with cataract surgery

Poster Details

First Author: J.Campos PORTUGAL

Co Author(s):    A. Campos   A. Neves   S. Mendes   D. Beselga   L. Violante   J. Castro Sousa

Abstract Details



Purpose:

To evaluate surgically induced astigmatism (SIA) when the clear corneal incision is done on the temporal meridian and variation of intraocular pressure (IOP) with cataract surgery.

Setting:

Ophthalmology Department, Santo André Hospital, Leiria-Pombal Hospital Center, Portugal

Methods:

A retrospective, unicentric study, included 91 eyes of a group of patients with a mean age of 83 years. All of them underwent phacoemulsification cataract surgery by the same surgeon through a 2.75 mm temporal corneal incision. Preoperative astigmatism and IOP were compared with data collected 1 month after surgery. Student T test was used to compare mean values.

Results:

Preoperative corneal astigmatism varied from 0.5 to 3.5 diopters with a mean of 1.21 ±0.74. SIA was -0.24 ±0.57 (p<0.001) [-2.00; +1.25]. Preoperative mean axis was 93.33ẃ ±31.83 and postoperative was 82.96ẃ ±36.68. Preoperative mean IOP was 15.47 ±4.44 and postoperative was 11.19 ±3.38, with a mean reduction of 4.28 mm Hg [-17.1; +6.3] after phacoemulsification cataract surgery (p<0.001). There were no statistically significant differences between gender, age or laterality (p>0.05).

Conclusions:

Clear corneal incision on temporal meridian decreased mean corneal astigmatism (-0.24 diopters) [-2.00; +1.25]. There was a statistically significant reduction of IOP 1 month after uneventful phacoemulsification.

Financial Disclosure:

NONE

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