Han Eui Seok, Kim Moonjung
Department of Ophthalmology, Sheikh Khalifa Specialty Hospital, PO Box 6365, Ras al-Khaimah, United Arab Emirates.
Department of Ophthalmology, Seoul National University Hospital, Seoul, Korea.
Int Ophthalmol. 2019 Dec;39(12):2807-2813. doi: 10.1007/s10792-019-01127-3. Epub 2019 May 27.
To analyze biometric parameters and patterns of corneal astigmatism in cataract surgery patients using optical low-coherence interferometry in Northern United Arab Emirates (UAE).
Axial length (AL), anterior chamber depth (ACD), horizontal corneal diameter (white to white, WTW) and flat and steep keratometry (K1 and K2, respectively) were optically measured using optical low-coherence interferometry (Aladdin). Ocular datasets acquired between 2015 and 2018 were collected and analyzed.
This study evaluated 238 eyes of 123 cataract patients with a mean age of 67.1 ± 9.4 years. Mean AL, ACD, WTW, K1, and K2 were 23.22 ± 0.99 mm, 3.05 ± 0.36 mm, 11.19 ± 0.46 mm, 43.72 ± 1.80 diopter (D), and 45.04 ± 1.71 D, respectively. Mean corneal astigmatism was 1.32 ± 0.97 D. Corneal astigmatism of 1.5 D or greater was found in 32.4%. With the rule, against the rule, and oblique astigmatism were found in 29.8%, 57.1%, and 13.0% of eyes, respectively.
Results of this study provide normative data for cataract surgery as an informative reference in Northern UAE, the Middle East. This study showed higher corneal astigmatism in Northern UAE than those in other countries.
使用光学低相干干涉测量法分析阿拉伯联合酋长国北部（阿联酋）白内障手术患者的生物测量参数和角膜散光模式。
使用光学低相干干涉测量法（阿拉丁）对眼轴长度（AL）、前房深度（ACD）、水平角膜直径（白对白，WTW）以及平坦和陡峭角膜曲率（分别为K1和K2）进行光学测量。收集并分析了2015年至2018年期间获取的眼部数据集。
本研究评估了123例白内障患者的238只眼睛，平均年龄为67.1±9.4岁。平均AL、ACD、WTW、K1和K2分别为23.22±0.99毫米、3.05±0.36毫米、11.19±0.46毫米、43.72±1.80屈光度（D）和45.04±1.71 D。平均角膜散光为1.32±0.97 D。发现1.5 D或更大的角膜散光占32.4%。顺规散光、逆规散光和斜向散光分别在29.8%、57.1%和13.0%的眼睛中发现。
本研究结果为阿联酋北部、中东地区的白内障手术提供了规范性数据，作为参考信息。本研究表明阿联酋北部的角膜散光高于其他国家。
