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Evaluation of the effective position of the lens after YAG capsulotomy using the new OCT device of the anterior segment based on swept-souce technology (Anterion, Heidelberg Engineering)

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First Author: M.João PORTUGAL

Co Author(s):    J. Costa   F. Faria Correia   N. Franqueira   T. Monteiro           

Abstract Details

Purpose:

The purpose of this work is to evaluate the change in the effective position of the lens (single piece C-loop hydrophobic Acrysof® Monofocal IOL) and in the anterior chamber after posterior capsulotomy with YAG laser.

Setting:

Ophthalmology Department, Hospital de Braga, Portugal

Methods:

Prospective study. The depth of the anterior chamber (AD), volume of the anterior chamber (ACV) and angle of the anterior chamber (ACA) (at 9 o'clock and 3 o'clock) were measured before and immediately after performing posterior capsulotomy with YAG laser. Measurements were made with a new anterior segment evaluation device based on swept-source optical coherence tomography (SS-OCT) – Anterion

Results:

50 eyes of 50 patients were included, 32 of which were women. The mean age of the patients was 71.41 to +/- 15.02 years. No statistically significant differences were found between AD before and after posterior capsulotomy (AD pre: 3.96 +/- 0.55 vs AD pos: 3.97 +/- 0.55 p = 0.1), as well as no differences were found in relation to ACA ( 9h pre: 47.55 +/- 11.23 vs 9h pos: 46.43 +/- 10.55, p = 0.809; 3h pre: 49.23 +/- 12.34 vs 3h pos: 47.81 +/- 9.92, p = 0.667) . However, there was a statistically significant difference in relation to the ACV (ACV pre: 198.09 +/- 43.43 vs ACV post: 205.31 +/- 46.27 p <0.01).

Conclusions:

YAG capsulotomy, despite inducing statistically significant directions in CA volume, does not appear to induce a statistically significant change in the effective position of the lens. Studies with higher samples will be needed to obtain more reliable results.

Financial Disclosure:

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