Rasooly R, Zauberman H
Department of Ophthalmology, Hadassah University Hospital, Jerusalem, Israel.
J Cataract Refract Surg. 1989 Jul;15(4):429-31. doi: 10.1016/s0886-3350(89)80063-x.
Assessment of intraocular lens (IOL) power may rely, when biometric measurements of the eye are not available, on refraction previous to cataract development. Such an assessment, however, is generally considered unreliable. To improve the predictability of this method, we correlated refraction measurements with predictions of IOL power. In contrast to previous studies which used retrospective assessment of precataract refraction, this study included only noncataractous eyes and correlated the direct refractive measurements obtained with hypothetical IOL power values. These values were calculated by placing axial length and corneal power measurements of the same eyes in the SRK formula. We conclude that the regression formula obtained may improve the clinical judgment required for predicting lens implant power in cataractous eyes, on the basis of precataract refractive measurements.
当无法获得眼睛的生物测量数据时，人工晶状体（IOL）屈光度的评估可能依赖于白内障发展之前的验光结果。然而，这种评估通常被认为不可靠。为了提高这种方法的可预测性，我们将验光测量结果与IOL屈光度预测值进行了关联。与以往使用白内障前验光回顾性评估的研究不同，本研究仅纳入了非白内障眼，并将获得的直接验光测量结果与假设的IOL屈光度值进行了关联。这些值是通过将同一只眼睛的眼轴长度和角膜屈光度测量值代入SRK公式计算得出的。我们得出结论，所获得的回归公式可能会改善基于白内障前验光测量结果预测白内障眼晶状体植入屈光度所需的临床判断。
