Photorefractive keratectomy after cataract surgery in uncommon cases: long-term results
Photorefractive keratectomy after cataract surgery in uncommon cases: long-term results作者机构：Department of Surgery Ophthalmology Clinic University Hospital of Messina Department of Ophthalmology Andrzej Frycz Modrzewski Krakow University Department of Medical-Surgical Sciences and Biotechnologies La Sapienza University of Rome
出 版 物：《International Journal of Ophthalmology(English edition)》 (国际眼科杂志（英文版）)
年 卷 期：2018年第11卷第4期
页 面：612-615页
核心收录：
学科分类：1002[医学-临床医学] 100212[医学-眼科学] 10[医学]
主 题：photorefractive keratectomy cataract residual ametropia intraocular lens error high myopia
摘 要：AIM： To evaluate the efficacy and safety of the excimer laser correction of the residual refractive errors after cataract extraction with intraocular lens（IOL） implantation in uncommon ***： Totally 24 patients with high residual refractive error after cataract surgery with IOL implantation were examined. Twenty-two patients had a history of phacoemulsification and IOL implantation, and two had extra-capsular cataract extraction with IOL implantation. Detailed examination of preoperative medical records was done to explain the origin of the post-cataract refractive errors. All patients underwent photorefractire keratectomy（PRK） enhancement. The mean outcome measures were refraction, uncorretted visual acuity（UCVA）, best corrected visual acuity（BCVA） and corneal transparency and follow up ranged from 1 to 8 ***： The principal causes of residual ametropia was inexact IOL calculation in abnormal eyes with high myopia and congenital lens abnormalities, followed by corneal astigmatism both suture induced and preexisting. After cataract surgery and before the laser enhancement the mean spherical equivalent（SE） was-0.56±3 D ranging from-4.62 to ＋2.25 D in high myopic patients, instead it was-1±1.73 D ranging from-3.25 to ＋3.75 D in the astigmatic eyes, with a mean cylinder of-3.75±0 ranging from-3 to ＋5.50 D. After laser refractive surgery the mean SE was 0.1±0.73, ranging from-0.50 to ＋1.50 in the myopic group, and it was-0.50±0.57 ranging from-1.25 to ＋0.50 in astigmatic patients, with a mean cylinder of-0.25±0.75. In myopic patients the mean UCVA and BCVA were 0.038±0.072 logMAR and 0.018±0.04 respectively, both ranging from 0.10 to 0.0. In astigmatic patients, the mean UCVA and BCVA were 0.213±0.132 and 0.00±0.0 respectively, UCVA ranging from 0.50 to 0.22 and BCVA was 0.00. All patients presented normal corneal transparency. No ocular hypertension was detected and no corneal haze was observed. All registered values remained stable also at the end line e
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