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Comparison of choroidal thickness with optical coherence tomography in patients with asymmetric open angle glaucoma

Session Details

Session Title: Imaging II

Session Date/Time: Sunday 29/09/2013 | 08:00-10:00

Paper Time: 09:52

Venue: Hall G1 (Level 2)

First Author: Y.KAUFFMANN FRANCE

Co Author(s):    A. Francoz   T. Martin-Phipps   C. Creuzot-Garcher   A. Bron     

Abstract Details

Purpose:

To investigate whether subfoveal choroidal thickness differs in both eyes of patients with asymmetrical open angle glaucoma.

Setting:

Department of Ophthalmology, University Hospital, Dijon, France

Methods:

Patients were included consecutively if they had an asymmetrical open angle glaucoma defined by a mean visual field defect of at least -6 decibels in the most affected eye and a difference between the two eyes of at least 6 decibels. For each patient, subfoveal choroidal thickness was assessed in both eyes by SD-OCT and a complete ocular examination was done.

Results:

We included 43 patients (22 males and 21 females) with a mean age of 68 years [46-86]. The mean visual field defects were -15.63 dB (CI95% [-17.79; -13.46]) for the most advanced eyes and -1.44 decibels (CI95% [-2.27; -0.61]) for the fellow eyes (p<0.0001). The mean retinal nerve fiber layer thicknesses were 56 and 79 µm (p<0.0001) and intraocular pressures were 13.4 and 12.6 mmHg (p=0.029) respectively. Axial lengths were 23.32 mm for glaucomatous eyes and 23.24 mm for the fellow eyes (p=0.1155). The mean subfoveal choroidal thickness was 204 µm (CI95% [180; 227]) for the glaucomatous eyes and 222 µm (CI95% [192; 252]) for the fellow eyes. The difference was not statistically significant (p=0.2651).

Conclusions:

This study did not show a statistical significant difference between the subfoveal choroidal thickness of the glaucomatous eyes and the fellow eyes in this selected population. In clinical practice, choroidal thickness does not seem to be a risk factor for open angle glaucoma.

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