摘要
目的:对比眼前节分析仪(Wavelight)、IOL Master、光学生物测量仪(LS900)及AS-OCT与量规测量角膜直径的差异。方法:选取2015-06/2018-01拟于本院行ICL V4c矫正屈光不正患者89例177眼,ICL植入手术前分别用Wavelight、IOL Master、LS900测量角膜横径(WTW),用AS-OCT测量房角之间的距离(ATA),也就是从内部测量角膜横径,然后显然验光及散瞳验光,第2d用量规测量角膜直径并做比较,以量规测量值输入厂家公式计算ICL直径,并做植入。用OCT检查术后3mo拱高等参数。结果:Wavelight、IOL Master、LS900测量WTW平均值分别为12.45±0.73、11.96±0.39、11.92±0.36mm,用AS-OCT测量ATA平均为11.80±0.44mm。量规测量WTW为11.49±0.30mm,量规测量值均比四种仪器测量值小(P<0.01)。LS900测量值比IOL Master小(P=0.098),可相互替代,其他仪器之间均有差异(P<0.01)。以量规测量值为基础计算的ICL V4c直径平均为12.77±0.37mm,植入术后3mo用OCT检查拱高为537.41±181.22μm。结论:四种仪器测量角膜直径值可做参考;以量规为基础计算的ICL术后拱高是理想的;在设计ICL大小时,量规是理想的测量角膜直径的工具,不可替代。
AIM: To compare the differences of corneal diameter measured with wavelight anterior segment analyzer(Wavelight),IOL-master optical bio-measurement(LS900), anterior segment OCT(AS-OCT) and gauge.METHODS: Totally 89 patients(177 eyes) with myopia who want to accept ICL were examined before operation with more than five kinds of instruments respectively, white to white(WTW) were examined with Wavelight, IOL-master, LS900 and gauge, angle to angle(ATA) with AS-OCT. Then the size of ICL was calculated based on the value of gauge. The vault of ICL was examined with OCT 3 mo after operation.RESULTS: WTW was(12.45±0.73, 11.96±0.39, 11.92±0.36, 11.49±0.30)mm measured by Wavelight, IOL-Master, LS900 and gauge respectively, ATA was(11.80±0.44)mm with AS-OCT. The value of gauge was the smallest one among them(all P<0.01). Among four instruments, there was no statistical difference between LS900 and AS-OCT(P=0.098), they can instead of each other;there were differences among other instruments(P<0.01). The size of ICL based on gauge was(12.77±0.37)mm. The vault of ICL is(537.41±181.22)μm 3 mo after implantation obtained by OCT.CONCLUSION: Gauge is ideal tool for measuring corneal diameter, it cannot be instead. Wavelight, IOL Master, LS900 and AS-OCT can be taken as reference.
作者
尹鸿芝
Hong-Zhi Yin(Department of Ming Vision Ophthalmology,Beijing 100062,China)
出处
《国际眼科杂志》
CAS
北大核心
2019年第4期701-703,共3页
International Eye Science
