Prevalence of corneal astigmatism before cataract surgery
Prevalence of corneal astigmatism before cataract surgery
复制标题
DOI：
10.1007/s10792-016-0201-z
复制
发表时间：
2016-12-01
影响因子：
1.6
通讯作者：
Jahanrad, Ali
中科院分区：
文献类型：
--
作者：
Mohammadi, Mehran;Naderan, Mohammad;Jahanrad, Ali
本研究的目的是描述和分析白内障手术患者角膜散光的患病率和模式。在一项前瞻性横断面研究中，收集了2013年1月至2014年12月白内障手术患者的术前人口统计数据、角膜测量值和屈光值。采用部分相干干涉仪（IOLMaster）光学测量轴向长度（AL）、平角和陡角测量。该研究包括1317例患者的2156只眼睛，平均年龄为64.92±11.48 (SD)（30-88岁）。所有患者的AL平均值为23.33 +/- 1.37 mm，角膜散光平均值为1.12 +/- 1.10屈光度(D)（范围为0.0-7.00）。平角和陡角的平均值分别为43.70 +/- 1.70和44.83 +/- 1.79 D。角膜散光1.50 D及以下者1590例（73.7%），大于1.50 D者566例（26.2%），大于3.00 D者161例（7.4%），WTR者796例（36.9%），ATR者1010例（46.8%），斜散者350例（16.2%）。ATR散光轴随年龄的增加而显著增加。大多数白内障手术患者的角膜散光在0.50 - 1.50 d之间。然而，我们的研究结果仅限于我们的人口统计数据，可能为不同目的的白内障患者、外科医生和人工晶状体制造商提供有用的数据。
The purpose of this study was to describe and analyze the prevalence and pattern of corneal astigmatism in cataract surgery candidates. In a prospective cross-sectional study, preoperative demographics, and keratometric and refractive values of cataract surgery candidates were collected from January 2013 to December 2014. Axial length (AL) and flat and steep keratometry measurements were optically measured by a partial coherence interferometry device (IOLMaster). This study consisted of 2156 eyes of 1317 patients with a mean age of 64.92 +/- 11.48 (SD) (30-88 years). The mean of AL was 23.33 +/- 1.37 mm, and the mean of corneal astigmatism was 1.12 +/- 1.10 diopter (D) (range 0.0-7.00), in all patients. Furthermore, the mean of flat and steep keratometry were 43.70 +/- 1.70 and 44.83 +/- 1.79 D, respectively. Corneal astigmatism was 1.50 D or less in 1590 eyes (73.7 %), more than 1.50 D in 566 eyes (26.2 %), 3.00 D or more in 161 eyes (7.4 %), WTR in 796 eyes (36.9 %), ATR in 1010 eyes (46.8 %), and oblique in 350 eyes (16.2 %). ATR astigmatism axis significantly increased with the increase in age. Corneal astigmatism of most cataract surgery candidates fell between 0.50 and 1.50 D. The results of our study however is confined to our demographics might provide useful data for cataract patients, surgeons, and intraocular lens manufacturers for different purposes.