Binkhorst C D, Colenbrander M C, Loones L H
Br J Ophthalmol. 1987 Jun;71(6):473-6. doi: 10.1136/bjo.71.6.473.
The size of the reflex image of keratometer mires can be used to determine the power of an intraocular lens (IOL) inside the eye (in situ). The dioptric scale reading from the front surface of a convex-plano intraocular lens in cases of unknown power is compared with computed values. The accuracy of the method is demonstrated in a series of patients with known IOL power. Though in our study we have assumed convex-plano lenses are in use, the same procedure can sometimes be applied to lenses of different forms. To interpret scale readings below 30 dioptres and over 60 dioptres we compiled an extension table, suited to the ophthalmometer of Javal-Schiøtz (Haag-Streit), making use of low-powered minus and plus auxiliary lenses in front of the tube of the instrument.
角膜曲率计视标的反射像大小可用于确定眼内（原位）人工晶状体（IOL）的屈光度。对于屈光度未知的凸平型人工晶状体，将其前表面的屈光度刻度读数与计算值进行比较。该方法的准确性在一系列已知IOL屈光度的患者中得到了验证。尽管在我们的研究中假设使用的是凸平型晶状体，但有时相同的程序也可应用于不同形状的晶状体。为了解读低于30屈光度和高于60屈光度的刻度读数，我们编制了一个扩展表，适用于Javal-Schiøtz（Haag-Streit）验光仪，在仪器镜筒前使用低度数的负透镜和正透镜辅助镜片。
