Baral Pawan, Baral Nabin, Maharjan Indra Man, Gautam Bhoj Raj, Bhandari Madhavendra
The Fred Hollows Foundation PNG, Madang, Papua New Guinea.
Nepal J Ophthalmol. 2014 Jul-Dec;6(2):192-6. doi: 10.3126/nepjoph.v6i2.11690.
The biometric parameters of the eye are measured for the calculation of the intra ocular lens power to be used in cataract surgery.
To report the keratometry reading, axial length and intra ocular lens power used for eyes operated for cataract in Karnali Zone, Nepal, and to compare these findings with those reported in other similar studies.
The data for the study were retrospectively collected from the case files of patients who had undergone cataract surgery between January 2011 and July 2012 in Karnali Zone, Nepal. These surgeries were performed in an outreach surgical camp organized by the Himalaya Eye Hospital, Nepal, as a part of its annual program. The SPSS 16.0 and Microsoft Excel 2007 software were used for the data analysis.
The total number of patients taken for the study was 1055 and the total number of eyes was 1055. There were 530 (50.23%) males and 525 (49.77%) females, with the mean age of 64.34±11.25, ranging from 8 to 98 years.The mean keratometry reading for the total sample was 44.11±1.6 (range, 34.00D to 49.00D). The mean axial length for the total sample was 22.68±0.88 (range, 17.75 to 26.17). The mean IOL power for the total sample was 21.60±1.74 (range, +15.00 to +30.00).
The biometric eye parameters of keratometry, axial length and IOL power of this study required for cataract surgery in a Karnali population are similar to those presented in other similar studies from Nepal and abroad.
测量眼睛的生物特征参数，用于计算白内障手术中使用的人工晶状体度数。
报告尼泊尔卡纳利地区接受白内障手术患者的角膜曲率读数、眼轴长度和人工晶状体度数，并将这些结果与其他类似研究报告的结果进行比较。
本研究数据回顾性收集自2011年1月至2012年7月在尼泊尔卡纳利地区接受白内障手术患者的病历。这些手术是由尼泊尔喜马拉雅眼科医院组织的外展手术营进行的，作为其年度计划的一部分。使用SPSS 16.0和Microsoft Excel 2007软件进行数据分析。
本研究纳入的患者总数为1055例，眼睛总数为1055只。男性530例（50.23%），女性525例（49.77%），平均年龄64.34±11.25岁，年龄范围为8至98岁。总样本的平均角膜曲率读数为44.11±1.6（范围为34.00D至49.00D）。总样本的平均眼轴长度为22.68±0.88（范围为17.75至26.17）。总样本的平均人工晶状体度数为21.60±1.74（范围为+15.00至+30.00）。
本研究中卡纳利人群白内障手术所需的角膜曲率、眼轴长度和人工晶状体度数等眼睛生物特征参数与尼泊尔和国外其他类似研究报告的参数相似。
