介绍了用于压平眼压计的圆台压平棱镜进行角膜压平直径线性测量原理及定位偏差分析；
The linear measurement principle of flattened diameter of the ocular cornea and the location deviation of the cone prism which is used in the applanation tonometer are introduced.
采用非接触式眼压计测量眼压，超声角膜测厚仪测量角膜中央厚度。
IOP reading was measured with noncontact tonometer; central corneal thickness were measured with ultrasonic corneal pachymeter.
目的讨论角膜中央厚度对非接触眼压计测量值的影响。
Objective To research the influence of central corneal thickness on the measurements of IOP obtained with NCT.
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