白种人患者白内障手术前角膜散光的患病率。
Prevalence of corneal astigmatism before cataract surgery in Caucasian patients.
作者信息
De Bernardo Maddalena, Zeppa Lucio, Cennamo Michela, Iaccarino Stefania, Zeppa Lucia, Rosa Nicola
机构信息
Department of Medicine and Surgery, University of Salerno, Salerno - Italy.
出版信息
Eur J Ophthalmol. 2014 Jul-Aug;24(4):494-500. doi: 10.5301/ejo.5000415. Epub 2013 Dec 16.
PURPOSE
To analyze and quantify the pattern of corneal astigmatism in patients awaiting cataract surgery to provide information for cataract surgeons and intraocular lens (IOL) manufacturers and to establish the demand for toric IOLs in a hospital.
METHODS
This cross-sectional retrospective study evaluated keratometric (K) values measured by partial coherence interferometry (IOLMaster) in cataract surgery candidates, who were then analyzed and correlated by age and axial length (AL) ranges.
RESULTS
The study evaluated the K values in 757 eyes of 380 patients with a mean age of 71.9 ± 10.2 years (range 33-96 years). The mean corneal astigmatism was 1.02 ± 0.69 D (range 0.06-4.57 D). It was 1 D or higher in 316 (41.74%) eyes. The mean AL was 23.56 ± 1.35 mm (range 20.53-31.86 mm).
CONCLUSIONS
Our study shows that roughly 50% of the eyes have more than 1 D of astigmatism. The results can help hospitals plan and analyze the amount and costs of using toric IOLs in patients with corneal astigmatism.
目的
分析并量化等待白内障手术患者的角膜散光模式，为白内障手术医生和人工晶状体（IOL）制造商提供信息，并确定医院对散光型IOL的需求。
方法
这项横断面回顾性研究评估了白内障手术候选者通过部分相干干涉测量法（IOLMaster）测得的角膜曲率（K）值，然后按年龄和眼轴长度（AL）范围进行分析和关联。
结果
该研究评估了380例患者757只眼的K值，患者平均年龄为71.9±10.2岁（范围33 - 96岁）。平均角膜散光为1.02±0.69 D（范围0.06 - 4.57 D）。316只眼（41.74%）的散光为1 D或更高。平均AL为23.56±1.35 mm（范围20.53 - 31.86 mm）。
结论
我们的研究表明，约50%的眼睛散光超过1 D。这些结果有助于医院规划和分析角膜散光患者使用散光型IOL的数量和成本。
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