Ke JIN, Yang JIANG, Ying LI, Yan LUO, Yu-mei JIN, Feng-rong AI. Influence of Different Surgery Types and Ablation Ratios on the Change of Corneal Topography After Excimer Laser Refractive Surgery[J]. Medical Journal of Peking Union Medical College Hospital, 2013, 4(2): 154-159. DOI: 10.3969/j.issn.1674-9081.2013.02.015
Citation: Ke JIN, Yang JIANG, Ying LI, Yan LUO, Yu-mei JIN, Feng-rong AI. Influence of Different Surgery Types and Ablation Ratios on the Change of Corneal Topography After Excimer Laser Refractive Surgery[J]. Medical Journal of Peking Union Medical College Hospital, 2013, 4(2): 154-159. DOI: 10.3969/j.issn.1674-9081.2013.02.015

Influence of Different Surgery Types and Ablation Ratios on the Change of Corneal Topography After Excimer Laser Refractive Surgery

More Information
  • Corresponding author:

    LI Ying Tel: 010-69156351, E-mail:liyingpumch@sohu.com

  • Received Date: January 29, 2013
  • Issue Publish Date: April 29, 2013
  •   Objective  To analyze the change of corneal topography after excimer laser photorefractive keratectomy and the influence of surgery types and ablation ratios.
      Methods  A total of 52 myopic patients (103 eyes) underwent excimer laser refractive surgery in our hospital from August 2008 to February 2009. The patients were grouped by the type of surgery:laser in situ keratomileusis (LASIK) group (27 patients, 53 eyes) and advanced surface ablation (ASA) group (25 cases, 50 eyes). In both groups, the patients were subgrouped by ablation depth/corneal thickness ratio (AD/CT):subgroup 1 (AD/CT ≤ 0.15) and subgroup 2 (AD/CT > 0.15). Routine ophthalmological examinations and corneal topography were performed before operation and 1 week, 1 month, and 3 months after operation. The main outcome measures included surface asymmetry index (SAI), surface regularity index (SRI), Δsimulated keratoscopy reading (ΔSimK), and simulated keratoscopy reading (SimK).
      Results  In subgroups L2 and A2, all the three postoperative SAI values improved significantly compared with preoperative values (P=0.000), but not in subgroups L1 and A1 (P>0.05). In subgroup L2, the SRI value improved significantly 1 week after surgery (P=0.010), but not after 1 month and 3 months (P > 0.05). In subgroup A2, the SRI values improved significantly 1 week and 1 month after surgery (P=0.000, P=0.005), but not after 3 months (P > 0.05). The SRI showed no significant difference among different time points in both subgroup L1 and A1 (P > 0.05). In all patients, both ΔSimK and SimK equivalent value decreased significantly after the operation (P=0.000). The changes of SAI and ΔSimK were influenced by both surgery type and the ablation ratio (P < 0.05), while the changes of SRI and SimK equivalent only by ablation ratio (P < 0.05).
      Conclusions  The postoperative corneal topographic parameters change after excimer laser refractive surgery. The changes after LASIK are larger than those after advanced surface ablation, and the changes increase with the ablation ratio.
  • [1]
    Pavan-Langston D. Manual of ocular diagnosis and therapy[M]. Hagerstown:Lippincott Williams & Wilkins, 2007:405.
    [2]
    Liu Z, Li Y, Cheng Z, et al. Seven-year follow-up of lasik for moderate to severe myopia[J]. J Refract Surg, 2008, 24:935-940. DOI: 10.3928/1081597X-20081101-13
    [3]
    Duffey RJ, Leaming D. US trends in refractive surgery:2004 ISRS/AAO Survey[J]. J Refract Surg, 2005, 21:742-748. DOI: 10.3928/1081-597X-20051101-14
    [4]
    Pallikaris IG, Kalyvianaki MI, Katsanevaki VJ, et al. EpiLASIK:preliminary clinical results of an alternative surface ablation procedure[J]. J Cataract Refract Surg, 2005, 31:879-885. DOI: 10.1016/j.jcrs.2004.09.052
    [5]
    Hondur A, Bilgihan K, Hasanreisoglu B. A prospective bilateral comparison of epi-LASIK and LASEK for myopia[J]. J Refract Surg, 2008, 24:928-934. DOI: 10.3928/1081597X-20081101-12
    [6]
    Morrow GL, Stein RM. Evaluation of corneal topography:past, present and future trends[J]. Can J Ophthalmol, 1992, 27:213-225. http://europepmc.org/abstract/MED/1393805
    [7]
    Brody J, Waller S, Wagoner M. Corneal topography:history, technique, and clinical uses[J]. Int Ophthalmol Clin, 1994, 34:197-207. DOI: 10.1097/00004397-199403430-00018
    [8]
    Fowler CW, Dave TN. Review of past and present techniques of measuring corneal topography[J]. Ophthalmic Physiol Opt, 1994, 14:49-58. DOI: 10.1111/j.1475-1313.1994.tb00556.x
    [9]
    Pholshivin P, Tangpagasit W. Comparison of central corneal thickness measurements by ultrasound pachymeter, optical coherence tomography and corneal topography[J]. J Med Assoc Thai, 2012, 95:123-128. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=10.1080/02713683.2018.1461910
    [10]
    Srivannaboon S, Chotikavanich S, Chirapapaisan C, et al. Precision analysis of posterior corneal topography measured by Visante Omni:repeatability, reproducibility, and agreement with Orbscan Ⅱ[J]. J Refract Surg, 2012, 28:133-138. DOI: 10.3928/1081597X-20111122-03
    [11]
    Módis L Jr, Szalai E, Kolozsvári B, et al. Keratometry evaluations with the Pentacam high resolution in comparison with the automated keratometry and conventional corneal topography[J]. Cornea, 2012, 31:36-41. DOI: 10.1097/ICO.0b013e318204c666
    [12]
    Scerrati E. Laser in situ keratomileusis vs. laser epithelial keratomileusis (LASIK vs. LASEK)[J]. J Refract Surg, 2001, 17:S219-S221. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=d313ae98d65bcd13726686d2e346ef8c
    [13]
    Andreassen TT, Simonsen AH, Oxlund H. Biomechanical properties of keratoconus and normal corneas[J]. Exp Eye Res, 1980, 31:435-441. DOI: 10.1016/S0014-4835(80)80027-3
    [14]
    Charman WN. Mismatch between flap and stromal areas after laser in situ keratomileusis as source of flap striae[J]. J Cataract Refract Surg, 2002, 28:2146-2152. DOI: 10.1016/S0886-3350(02)01636-X
    [15]
    Ustundag C, Bahcecioglu H, Ozdamar A, et al. Optical coherence tomography for evaluation of anatomical changes in the cornea after laser in situ keratomileusis[J]. J Cataract Refract Surg, 2000, 26:1458-1462. DOI: 10.1016/S0886-3350(00)00558-7
    [16]
    de Benito-Llopis L, Teus MA, Sanchez-Pina JM, et al. Comparison between LASEK and LASIK for the correction of low myopia[J]. J Refract Surg, 2007, 23:139-145. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=d8a0c876ceb04a179afc379a4745f2fb
    [17]
    Chen MC, Lee N, Bourla N, et al. Corneal biomechanical measurements before and after laser in situ keratomileusis[J]. J Cataract Refract Surg, 2008, 34:1886-1891. DOI: 10.1016/j.jcrs.2008.06.035
    [18]
    Hamilton DR, Johnson RD, Lee N, et al. Differences in the corneal biomechanical effects of surface ablation compared with laser in situ keratomileusis using a microkeratome or femtosecond laser[J]. J Cataract Refract Surg, 2008, 34:2049-2056. DOI: 10.1016/j.jcrs.2008.08.021
    [19]
    Brenner LF, Alió JL, Vega-Estrada A, et al. Clinical grading of post-LASIK ectasia related to visual limitation and predictive factors for vision loss[J]. J Cataract Refract Surg, 2012, 38:1817-1826. DOI: 10.1016/j.jcrs.2012.05.041
    [20]
    Lee DH, Seo S, Jeong KW, et al. Early spatial changes in the posterior corneal surface after laser in situ keratomileusis[J]. J Cataract Refract Surg, 2003, 29:778-784. DOI: 10.1016/S0886-3350(02)01842-4
    [21]
    Baek TM, Lee KH, Tomidokoro A, et al. Corneal irregular astigmatism after laser in situ keratomileusis for myopia[J]. Br J Ophthalmol, 2001, 85:534-536. DOI: 10.1136/bjo.85.5.534
    [22]
    Anera RG, Castro JJ, Jiménez JR, et al. Optical quality and visual discrimination capacity after myopic LASIK with a standard and aspheric ablation profile[J]. Refract Surg, 2011, 27:597-601. DOI: 10.3928/1081597X-20110303-01
    [23]
    Bühren J, Nagy L, Yoon G, et al. The effect of the asphericity of myopic laser ablation profiles on the induction of wavefr ont aberrations[J]. Invest Ophthalmol Vis Sci, 2010, 51:2805-2812. DOI: 10.1167/iovs.09-4604
  • Related Articles

    [1]JIA Chunyu, WANG Gangan, WANG Jiahui, CHEN Gang, ZHENG Ke, LI Xuemei. Correlation Between Neutrophil to Lymphocyte Ratio and eGFR in Diabetic Patients: A Cross-sectional Analysis Based on NHANES Data[J]. Medical Journal of Peking Union Medical College Hospital, 2025, 16(2): 379-385. DOI: 10.12290/xhyxzz.2024-0908
    [2]LEI Zhenyun, XUE Guozhong, LIU Zhenhua, ZHANG Xinli. Research progress on action mechanism of NLRP3 inflammasome and pyroptosis in diabetic nephropathy[J]. Medical Journal of Peking Union Medical College Hospital. DOI: 10.12290/xhyxzz.2024-0543
    [3]CHEN Danni, WANG Shiling, LU Hong, ZHENG Ya, WANG Yuping, REN Qian. Relationship Between Vitamin D and Metabolic Associated Fatty Liver Disease and Its Mechanism[J]. Medical Journal of Peking Union Medical College Hospital, 2023, 14(6): 1258-1265. DOI: 10.12290/xhyxzz.2023-0075
    [4]WEI Jiaojiao, LIU Shiwei, DUAN Ruixue, LI Nan, WANG Jiangna. Effects of Vaspin on Pancreatic Beta Cell Function in Type 2 Diabetic Rats by AMPK/mTOR Autophagy Signaling Pathway[J]. Medical Journal of Peking Union Medical College Hospital, 2023, 14(3): 543-552. DOI: 10.12290/xhyxzz.2022-0183
    [5]WANG Jia. Peripheral Nerve Block in Patients with Diabetic Peripheral Neuropathy[J]. Medical Journal of Peking Union Medical College Hospital, 2022, 13(6): 1064-1068. DOI: 10.12290/xhyxzz.2022-0043
    [6]HUANG Feiling, LIU Yanping, HE Yuan, MA Liangkun. Research Progress on Vitamin D and Gestational Diabetes Mellitus[J]. Medical Journal of Peking Union Medical College Hospital, 2021, 12(6): 994-998. DOI: 10.12290/xhyxzz.2021-0048
    [7]YU Weihong, ZHANG Xiao, WU Chan, CHEN Huan, YANG Zhikun, HE Feng, ZHANG Zhiqiao, ZHANG Bilei, GONG Di, WANG Yuelin, YANG Jingyuan, LI Bing, SUN Yanyuan, MA Yajing, LU Huiqin, XIA Wei, ZHOU Wei, ZHANG Donglei, PAN Qingmin, YANG Ning, WANG Shuna, SUN Xiaolei, YU Ying, SU Chang, WAN Bo, WANG Mingqi, WANG Min, CHEN Youxin. Procedures of Establishing a Well-annotated Database of Color Fundus Photography of Diabetic Retinopathy for Artificial Intelligence Research[J]. Medical Journal of Peking Union Medical College Hospital, 2021, 12(5): 684-688. DOI: 10.12290/xhyxzz.2021-0613
    [8]Yanping Liu, Qiaer Jin, Yuanyuan Bao, Shanshan Li, Shonglin Yu, Ling Qiu. Vitamin D Nutritional Status and Its Influencing Factors among Women with GestationalDiabetes Mellitus in Mid- to Late-gestation[J]. Medical Journal of Peking Union Medical College Hospital, 2017, 8(1): 20-24. DOI: 10.3969/j.issn.1674-9081.2017.01.005
    [10]Qian ZHANG, Xiao-chun LIANG, Qing SUN, Pu-yan WANG, Wen-zhi HUANG, Bo-wu LI, Yan-dong ZHANG, Yun-zhou GAO. Effect of Jinmaitong on Oxidative Stress in Dorsal Root Ganglion of Diabetic Rats[J]. Medical Journal of Peking Union Medical College Hospital, 2012, 3(4): 441-447. DOI: 10.3969/j.issn.1674-9081.2012.04.018
  • Cited by

    Periodical cited type(20)

    1. 王建新,孙明月,吕行,郭曼萍,代欣玥,杨巧宁,申春悌,元唯安,王天芳,连凤梅,刘树林,张磊,谢雁鸣,王忠,王保和,黄宇虹,刘文娜,高蕊. 中医证候疗效评价量表研制指南. 中国新药杂志. 2025(02): 113-122 .
    2. 唐晓颇,姜泉. 基于临床需求的干燥综合征诊疗体系构建与示范应用. 中国中医基础医学杂志. 2025(02): 231-235 .
    3. 杨一玖,张海力,刘斌,梁宁,李慧珍,宋填,曹文杰,胡紫腾,马厚芳,王燕平,韩晟,史楠楠. 中成药特征价格变量指标体系构建研究. 中国卫生经济. 2025(02): 18-23 .
    4. 薛飞飞,郝闻致,陈家旭. 层次分析法在中医证候标准化研究的应用探讨. 中华中医药杂志. 2025(01): 271-274 .
    5. 潘轶竹,郭默宁,蒋锋,李晓虹,王明刚,肖存利. DRGs背景下基于改良德尔菲法的精神专科医院医疗绩效评价指标体系构建研究. 中国医疗管理科学. 2024(01): 105-111 .
    6. 刘晓雨,刘志华,李京璠,李润泽,王玉曼,薛滨清,张心千,杨倩,杜艳茹. 浊毒证诊断量表的研制与权重赋值——基于德尔菲法及层次分析法. 中医杂志. 2024(07): 684-690 .
    7. 胡卓慕,吴进,方玢茹,毛旭,郭莉萍,朱利明. 《中国叙事医学专家共识(2023)》的德尔菲法研究. 叙事医学. 2024(02): 105-112 .
    8. 黄栖,唐乐微,刘茹茹,林丹,黄佳丽,彭雯清,李一靖,陈燕燕,王毓琴. 基于德尔菲法初步构建急性前葡萄膜炎患者报告结局量表. 中华眼视光学与视觉科学杂志. 2024(07): 507-515 .
    9. 王雅琪,高一城,苏澄元,刘美君,李迅,费宇彤. 临床实践指南中临床问题结构化分级及评价. 中国循证医学杂志. 2024(07): 827-831 .
    10. 梁昌昊,尹丁冉,刘美君,尹冠翔,李迅,王雅琪,刘思岐,佟敏,刘鹏伟,苏祥飞,费宇彤. 中医药指南制订中共识法应用关键要素的定性研究. 协和医学杂志. 2024(04): 942-952 . 本站查看
    11. 车前子,郭敬,佟琳,蔡秋杰,陈琳,李慧珍,张海力,郑丹平,胡明智,宋填,程翠翠,蒋寅,刘晨曦,胡妮娜,张华敏,史楠楠. 基于人用经验的中药新药临床定位研究策略与方法. 中国中医基础医学杂志. 2024(08): 1337-1340 .
    12. 赵越,李宵,薛朝军,白万军,董占军. 医疗机构静脉用药评价与遴选专家共识. 医药导报. 2024(09): 1369-1375 .
    13. 彭蓉晏,孙凌云,刘稼玺,庞英,王子旭,唐末,丁亚丛,梁昌昊,唐丽丽,杨宇飞. 基于改良德尔菲法构建《早中期结直肠癌根治术后中西医结合心理康复干预指南》临床问题. 中国中西医结合杂志. 2024(08): 912-920 .
    14. 马思成,张宸铭,唐硕彤,郝晓慧,刘稳榜,马瑞敏,胡静,王祖龙,孙自学. 中医药治疗精子DNA损伤的德尔菲研究. 中华男科学杂志. 2024(09): 854-860 .
    15. 周旋,方格,马庆宇,李晓娟,李永欣,胡志希,李先涛,陈家旭. 基于德尔菲法和层次分析法的气滞证诊断条目筛选及权重确定. 中医杂志. 2024(21): 2211-2216 .
    16. 吴雪,王文雅,廖星,王永炎. 中医药卫生技术评估实施规范的构建与内容介绍. 中国中药杂志. 2024(20): 5643-5651 .
    17. 孟庆莉,姜德春,李达,纪立伟,刘宪军,冀召帅,陶小妹,王海莲,于晓佳,贾自力,张景富,陈世财,顾红燕. 北京地区基层医疗机构药物治疗管理服务门诊工作实施评价体系构建——基于德尔菲法和层次分析法. 中国医院药学杂志. 2024(24): 2909-2914 .
    18. 中国医师协会外科医师分会肥胖代谢病综合管理与护理专家工作组,中国医师协会外科医师分会肥胖和代谢病外科专家工作组,中国肥胖代谢外科研究协作组. 肥胖代谢外科医学科普中国专家共识(2024版). 中华消化外科杂志. 2024(12): 1471-1478 .
    19. 张红银,朱红梅,张慧琴,姚宏文,朱桂荣,李琳. 云南省静脉用药调配中心工作人员细胞毒药物职业暴露及防护调查分析. 昆明医科大学学报. 2023(07): 105-112 .
    20. 张佳佳,杨超,杜世豪,陈晟,杜朔,赵吉平. 基于制定WFAS《女性尿失禁临床实践指南》探讨改良德尔菲法在针灸指南推荐意见研制过程中的应用价值. 中国针灸. 2023(12): 1449-1453 .

    Other cited types(5)

Catalog

    Article Metrics

    Article views PDF downloads Cited by(25)
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return
    x Close Forever Close