高度近视患者的中央角膜厚度
Central corneal thickness in high myopia.
作者信息
Pedersen Lene, Hjortdal Jesper, Ehlers Niels
机构信息
Department of Ophthalmology, Aarhus University Hospital, Arhus Sygehus, Arhus, Denmark.
出版信息
Acta Ophthalmol Scand. 2005 Oct;83(5):539-42. doi: 10.1111/j.1600-0420.2005.00498.x.
PURPOSE
To examine if central corneal thickness (CCT) is different in emmetropia and high myopia.
METHODS
57 emmetropic subjects (0 to + 1.5 D) and 48 high myopes (all more than - 6 D in spherical equivalent refraction) were studied. CCT was measured by a Haag-Streit Optical Low-Coherence Reflectometry (OLCR) pachymeter, a recently developed high precision pachymeter with a standard deviation (SD) for repeated measurements of 1 microm.
RESULTS
Mean CCT for the emmetropic group was 538.6 microm (SD = 32.1), and for the myopic group 527.7 microm (SD = 35.0). Neither the mean CCT nor the variance from the two groups showed a statistically significant different (p > 0.05).
CONCLUSION
CCT is not systematically altered in myopia. The process by which the myopia progresses does not to a measurable degree influence the central cornea.
目的
研究正视眼和高度近视眼的中央角膜厚度（CCT）是否存在差异。
方法
对57名正视眼受试者（0至+1.5 D）和48名高度近视眼患者（等效球镜度均超过-6 D）进行研究。使用Haag-Streit光学低相干反射测量（OLCR）角膜测厚仪测量CCT，这是一种最近开发的高精度角膜测厚仪，重复测量的标准差（SD）为1微米。
结果
正视眼组的平均CCT为538.6微米（SD = 32.1），近视眼组为527.7微米（SD = 35.0）。两组的平均CCT和方差均未显示出统计学上的显著差异（p > 0.05）。
结论
近视眼中CCT没有系统性改变。近视进展的过程在可测量的程度上不会影响中央角膜。
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