中国医科大学学报

中国医科大学学报
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中国医科大学学报 ›› 2017, Vol. 46 ›› Issue (8): 742-745.doi: 10.12007/j.issn.0258-4646.2017.08.016

• 论著 • 上一篇    下一篇

角膜形态及视觉质量对角膜塑形镜试戴结果的影响

孙园,周珺,高敬,王晓霞,王琳,赵琪   

  1. 大连医科大学附属第二医院眼科,辽宁 大连 116027
  • 收稿日期:2016-10-19 出版日期:2017-08-30 发布日期:2017-08-24
  • 通讯作者: 赵琪 E-mail:zhaoqi0219@126.com
  • 作者简介:孙园(1991 -),女,硕士研究生 .

Effects of Corneal Surface Shape and Optical Quality on the Results of Trial Fitting in Orthokeratology

SUN Yuan,ZHOU Jun,GAO Jing,WANG Xiaoxia,WANG Lin,ZHAO Qi   

  1. Department of Ophthalmology,The Second Hospital of Dalian Medical University,Dalian 116027,China
  • Received:2016-10-19 Online:2017-08-30 Published:2017-08-24

摘要: 目的 探讨角膜形态及视觉质量对角膜塑形镜试戴成败的影响。方法 选择在我院验配角膜塑形镜的患者 38 例(67眼)。在戴镜前利用 OPDⅢ-Scan 进行检测,获得角膜表面规则指数(SRI)、角膜表面不对称指数(SAI)、Q 值、4 mm 瞳孔直径下高 阶像差的斯特列尔率(SR)、高阶像差的均方根(RMS)值,然后进行试戴,试戴成功者为成功组(45 眼),试戴失败者为失败组(22 眼),比较 2 组患者角膜形态及视觉质量的差异。结果 试戴角膜塑形镜成功组 SRI、SAI、Q 值、SR、RMS 与失败组比较,差异均 无统计学意义。结论 角膜塑形镜试戴成功与否与试戴前的角膜形态及视觉质量参数(SRI、SAI、Q 值、RMS、SR)无关。

关键词: 角膜塑形镜, 角膜形态, 视觉质量, 角膜表面规则指数, 角膜表面不对称指数, 斯特列尔率

Abstract: Objective To determine the parameters of corneal surface shape and optical quality that affect the results of trial fitting in overnight orthokeratology(OK lenses)in adolescents with myopia. Methods Thirty-eight subjects(67 eyes)who met the inclusion criteria were enrolled in this study. The parameters of corneal surface shape including surface regularity index(SRI),surface asymmetry index(SAI),and Q value were assessed with a corneal topographer before beginning orthokeratology. The Strehl ratio(SR)and the root-mean-square(RMS)of the total higherorder aberrations in a 4-mm pupil were measured before the trial fitting. Participants who had tried orthokeratology were divided into two groups according to the success or failure of trial fitting. Then,we compared the differences in the corneal surface shape and optical quality between the two groups. Results There were 45 eyes in the success group,and 22 eyes in the failure group. There were no statistically significant differences for SRI(P = 0.188),SAI(P = 0.338),Q value(P = 0.657),RMS(P = 0.456),and SR(P = 0.479)in the two groups. Conclusion The result of trial fitting in orthokeratology is not correlated with the parameters of corneal status and optical quality(SRI,SAI,Q value,RMS,SR).

Key words: orthokeratology, corneal topography, optical quality, surface regularity index, surface asymmetry index, Strehl ratio

中图分类号: 

  • R778.1
[1] 鲁元媛, 王宏娜, 万晓梅, 丁香英, 于紫燕, 许军. 波前像差引导的准分子激光上皮瓣下角膜磨镶术后早期客观视觉质量的临床观察[J]. 中国医科大学学报, 2018, 47(10): 917-920.
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