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Anterior Chamber and Lens Position before and after Phacoemulsification According to Axial Length
안축장에 따른 백내장수술 전후 전방 구조 및 렌즈 위치의 변화 비교
JKOS 2020 Jan;61(1):17-26
Published online January 15, 2020;  https://doi.org/10.3341/jkos.2020.61.1.17
Copyright © 2020 The Korean Ophthalmological Society.
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Suk Hoon Jung, MD, Seonjoo Kim, MD, So Hyang Chung, MD, PhD
정석훈 · 김선주 · 정소향

Department of Ophthalmology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
가톨릭대학교 의과대학 서울성모병원 안과학교실
Received June 20, 2019; Revised July 19, 2019; Accepted December 30, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
 Abstract
Purpose: In this study, we evaluated changes in the anterior chamber structure and lens position before and after phacoemulsification in eyes grouped by axial length (AL).
Methods: This study included 65 eyes (16 short eyes [AL < 22.5 mm], 33 normal eyes [22.5 mm < AL < 25.0 mm], and 16 long eyes [AL > 25.5 mm]) that underwent cataract surgery. Pre- and postoperative anterior chamber depth (ACD) was measured using Pentacam® and IOL Master®. In addition, we evaluated the anterior chamber angle (ACA), anterior chamber volume (ACV), epithelium-iris distance, and iris-lens (intraocular lens [IOL]) distance.
Results: The change in ACD was significantly smaller in long eyes (Pentacam®, p = 0.000; IOL Master®, p = 0.001). The change in ACA was significantly larger in short eyes (p = 0.000), and the change in ACV was significantly smaller in long eyes (p = 0.000). The change in the epithelium–iris distance was significantly smaller in long eyes (p = 0.000), and the change in the iris-lens (IOL) distance was significantly smaller in short eyes (p = 0.000).
Conclusions: In short eyes, changes in ACD, ACA, and ACV were found to be larger than those of other groups as the iris moved backward. In long eyes, greater backward movement of the IOL was observed. Therefore, the appropriate IOL power should be chosen, considering the postoperative position of the IOL during cataract surgery of short and long eyes.
Keywords : Anterior chamber depth, Axial length, Intraocular lens, Long, Short

 

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