Effect of Nd:YAG laser posterior capsulotomy on higher order aberrations in different types of posterior capsule opacification: A prospective study.

IF 2.1 4区医学 Q2 OPHTHALMOLOGY Indian Journal of Ophthalmology Pub Date : 2024-10-25 DOI:10.4103/IJO.IJO_3162_23

R Senthil Prasad, Tony A Koshy, R Sankarananthan, Logesh Balakrishnan, Kamatchi Nagu, Madhu Shekhar

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Abstract

Purpose: To evaluate higher order aberrations (HOA) in different types of posterior capsule opacification (PCO) and analyze its changes fosllowing Nd:YAG laser posterior capsulotomy (LPC).

Settings: Tertiary care ophthalmic hospital.

Design: Prospective, comparative, observational study.

Methods: One hundred ninety-three pseudophakic eyes with PCO were evaluated over 3 months. PCO was classified into pearly, fibrous, and mixed types. Their uncorrected visual acuity (UCVA), corrected distance visual acuity (CDVA), intraocular pressure (IOP), evaluation of posterior capsule opacification (EPCO) scoring and root mean square values of HOA (total, coma, spherical, and trefoil) were measured using a wavefront aberrometer before and after LPC.

Results: Pearly, fibrous, and mixed PCO were observed in 89 (46.1%), 47 (24.4%), and 57 (29.5%) eyes respectively. The UCVA and CDVA showed improvement in all types of PCO post-procedure. The total HOA was 0.48 ± 0.47, 0.43 ± 0.42, 0.37 ± 0.34, and 0.76 ± 0.53, the coma aberrations were 0.18 ± 0.15, 0.18 ± 0.14, and 0.19 ± 0.19, spherical aberrations were 0.07 ± 0.12, 0.09 ± 0.12, and 0.05 ± 0.06, whereas the trefoil aberrations were 0.35 ± 0.44, 0.24 ± 0.26, and 0.21 ± 0.20, 15-day post-Nd:YAG LPC in pearly, fibrous, and mixed PCO respectively, all of which showed a significant reduction. The EPCO score showed no significant difference between different subtypes of PCO and had no correlation with the HOA.

Conclusions: Post Nd:YAG LPC showed improvement in visual acuity with significant reduction in HOA in all types of PCO.

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Nd:YAG 激光后囊切开术对不同类型后囊混浊的高阶像差的影响：前瞻性研究。

目的：评估不同类型后囊不透明（PCO）的高阶像差（HOA），并分析其在Nd:YAG激光后囊切开术（LPC）后的变化：设置：三级眼科医院：设计：前瞻性、比较、观察研究：对193只患有PCO的假性角膜病眼进行了为期3个月的评估。PCO分为珍珠状、纤维状和混合型。使用波前像差仪测量了 LPC 前后的未矫正视力 (UCVA)、矫正远视力 (CDVA)、眼压 (IOP)、后囊不透明评估 (EPCO) 评分和 HOA（总、昏迷、球面和三叶）的均方根值：在 89 只（46.1%）、47 只（24.4%）和 57 只（29.5%）眼睛中分别观察到珍珠状、纤维状和混合型 PCO。所有类型的 PCO 术后 UCVA 和 CDVA 均有改善。总HOA分别为0.48±0.47、0.43±0.42、0.37±0.34和0.76±0.53，昏迷像差分别为0.18±0.15、0.18±0.14和0.19±0.19，球差分别为0.07±0.12、0.09±0.12和0.珍珠状、纤维状和混合型 PCO 在 Nd:YAG LPC 术后 15 天的球差分别为 0.07 ± 0.12、0.09 ± 0.12 和 0.05 ± 0.06，而三叶形像差分别为 0.35 ± 0.44、0.24 ± 0.26 和 0.21 ± 0.20，均有显著降低。EPCO 评分在不同亚型的 PCO 之间无明显差异，与 HOA 无相关性：结论：Nd:YAG LPC术后视力得到改善，所有类型的PCO的HOA均显著降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Indian Journal of Ophthalmology OPHTHALMOLOGY-

CiteScore

3.80

自引率

19.40%

发文量

1963

审稿时长

38 weeks

期刊介绍： Indian Journal of Ophthalmology covers clinical, experimental, basic science research and translational research studies related to medical, ethical and social issues in field of ophthalmology and vision science. Articles with clinical interest and implications will be given preference.