手持式角膜曲率计。

A hand-held keratometer.

作者信息

Lam A K

机构信息

Department of Optometry and Radiography, Hong Kong Polytechnic University, Hung Hom.

出版信息

Ophthalmic Physiol Opt. 1995 May;15(3):227-30. doi: 10.1016/0275-5408(95)90575-m.

DOI:10.1016/0275-5408(95)90575-m

PMID:7659423

Abstract

Using model eyes the sensitivity to orientation of an Alcon hand-held autokeratometer was assessed after calibration with steel balls. It was concluded that the keratometer should be used in a vertical position (6:00/12:00) in order for axis references to be accurate. Corneal curvature of optometry students was measured using the autokeratometer and a Bausch and Lomb keratometer. The results showed that the autokeratometer was similar to the Bausch and Lomb keratometer in measuring the vertical and horizontal principal meridians, and the axis of the vertical principal meridian. This hand-held keratometer is useful for screening purposes and measuring corneas of infants.

摘要

使用模型眼，在用钢球校准后评估了爱尔康手持自动角膜曲率计对方向的敏感度。得出的结论是，为了使轴位参考准确，角膜曲率计应在垂直位置（6:00/12:00）使用。使用自动角膜曲率计和博士伦角膜曲率计测量了验光专业学生的角膜曲率。结果表明，自动角膜曲率计在测量垂直和水平主子午线以及垂直主子午线的轴位方面与博士伦角膜曲率计相似。这种手持角膜曲率计可用于筛查目的以及测量婴儿的角膜。