Pentacam与光学生物测量法测量正常和近视眼前房深度和角膜测量值的比较研究

Hend El-Sayed, Nashwa Lamie, Fatma A. Atwa, Nermien El-Dien Mohammed
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引用次数: 1

摘要

目的准确测量前段参数对白内障、青光眼等多种病变的诊断具有重要意义。前房深度(ACD)和角膜半径(R1, R2)是生物测量和屈光手术的重要参数。将ACD纳入人工晶状体度数的计算中是减少术后误差的有效方法。目的比较Pentacam和光学生物计在正常眼和近视眼的前节参数ACD、k值和散光测量值。患者和方法于2020年4 - 8月在Al-Zahraa大学医院和Al-Rwad眼科医院门诊进行比较观察性病例对照研究。在Al-Rwad眼科医院进行了Pentacam测量,在Al-Zahraa大学医院进行了光学生物测定。研究对象为60只晶状眼,分为两组:ⅰ组(30只正常眼)和ⅱ组(30只近视眼)。采用角膜地形图waveight Allegro Oculyzer Pentacam测量ACD、角膜屈光度和角膜散光,然后使用Nidek AL Scan optical Biometer (Nidek Co. Ltd)进行光学生物测定。结果光学生物计和Pentacam在正常组和近视组的ACD、角膜度数和散光测量方面无显著差异。结论:waveight Allegro Oculyzer Pentacam与Nidek AL扫描光学生物计是一种优秀的非接触式仪器,两种仪器的检测结果具有良好的相关性和可比性,可在大多数临床环境中互换使用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A comparative study between Pentacam and optical biometry measurements of anterior-chamber depth and keratometric values in normal and myopic eyes
Purpose Accurate measurement of the anterior-segment parameters is important for diagnosis of various pathologies such as cataract and glaucoma. Anterior-chamber depth (ACD) and corneal radii (R1, R2) are important parameters for biometry and refractive surgery. Considering ACD into the calculation of the intraocular lens power is an effective method to reduce postoperative errors. Aim To compare the anterior-segment parameters in the form of ACD, K-readings, and astigmatism measurements by using Pentacam and optical biometer in both normal and myopic eyes. Patients and methods A comparative observational case–control study was conducted at the outpatient clinic of Al-Zahraa University Hospital and Al-Rwad Eye Hospital from April to August 2020. Pentacam measurements was taken at Al-Rwad Eye Hospital and optical biometry was done at Al-Zahraa University Hospital. Our study was performed on 60 phakic eyes classified into two groups: group I (30 normal eyes) and group II (30 myopic eyes). The ACD, keratometry, and corneal astigmatism were measured using corneal topography WaveLight Allegro Oculyzer Pentacam and then optical biometry using Nidek AL Scan Optical Biometer (Nidek Co. Ltd). Results Our study showed that there was no significant difference between the optical biometer and Pentacam in measuring ACD, corneal power, and astigmatism measurements for both normal and myopic groups. Conclusion The WaveLight Allegro Oculyzer Pentacam and the Nidek AL Scan Optical Biometer are excellent noncontact devices and the results obtained using the two devices were well correlated and comparable, so they could be used interchangeably in most clinical settings.
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