Limdi N K, Sheth K J
Department of Ophthalmology, Baroda Medical College, Gujarai.
Indian J Ophthalmol. 1991 Apr-Jun;39(2):50-2.
The aim of this study was to determine the range of ametropias encountered by using the computerized Ophthasonic A-Scan. The SRK formula was used to compute the IOL power using axial length and keratometry as inputs. The accuracy of prediction of IOL power was calculated by noting the disparity between the expected post-operative refraction and the actual refraction obtained after one and a half months of IOL implantation. The results obtained were encouraging; the maximum deviation from the expected result being +/- 3.2 D.
本研究的目的是确定使用电脑化眼超声A超所遇到的屈光不正范围。采用SRK公式，将眼轴长度和角膜曲率作为输入参数来计算人工晶状体的屈光度。通过记录预期术后屈光不正与人工晶状体植入后一个半月实际测得的屈光不正之间的差异，来计算人工晶状体屈光度预测的准确性。所得结果令人鼓舞；与预期结果的最大偏差为±3.2D。
