准分子激光原位角膜磨镶术后眼佩戴角巩膜接触镜时的角膜生物力学参数

Corneal Biomechanical Parameters With Corneoscleral Contact Lenses in Post-Laser In Situ Keratomileusis Eyes.

作者信息

Montalt Juan C, Porcar Esteban, España-Gregori Enrique, Peris-Martínez Cristina

机构信息

Department of Optics, Optometry and Vision Sciences (J.C.M., E.P.), Physics College, University of Valencia, Burjassot, Valencia, Spain; Department of Surgery (E.E.), Ophthalmology Unit, la Fe University and Polytechnic Hospital, Faculty of Medicine and Odontology, University of Valencia, Hospital la Fe, Valencia, Spain; and FISABIO Oftalmología Médica (C.P.), Cornea Unit and Anterior Segment Diseases, Catholic University of Valencia, Valencia, Spain.

出版信息

Eye Contact Lens. 2018 Nov;44 Suppl 2:S65-S69. doi: 10.1097/ICL.0000000000000420.

DOI:10.1097/ICL.0000000000000420

PMID:28945645

Abstract

OBJECTIVE

To evaluate corneal biomechanical parameters wearing corneoscleral contact lenses (CScL) in patients with irregular corneas after laser in situ keratomileusis (LASIK).

METHODS

Data from patients fitted with CScL because of corneal surface irregularities after complicated LASIK surgery were selected by two eye clinics. Previously and after 1 year of CScL fitting, corneal hysteresis (CH), corneal resistance factor (CRF), corneal-compensated intraocular pressure (IOPcc), and central corneal thickness were evaluated. In addition, visual acuity, subjective comfort, and wearing time CScL were reported.

RESULTS

The study comprised 27 eyes. Statistically significant differences were found in visual acuity between the best spectacle-corrected vision and after CScL fitting [mean±SD, 0.16±0.03 logarithm of the minimum angle of resolution (logMAR) and 0.01±0.06 logMAR, respectively; P<0.001]. In addition, the patients reported high subjective comfort ratings (22 eyes were comfortable or very comfortable) and prolonged usage times (mean±SD, 12.67±1.98 hr of continuous wear a day). Statistically significant differences were found in the CRF between before CScL fitting and after 1 year of CScL wear (mean±SD, 7.57±0.87 and 7.68±0.84 mm Hg, respectively; P=0.015). Central corneal thickness, CH, and IOPcc showed slight differences after 1 year of CScL wear (1.78 μm, 0.04 and 0.21 mm Hg, respectively).

CONCLUSION

Corneal biomechanical parameters increased slightly, although significantly for CRF, apparently without adverse clinical effects in post-LASIK eyes with irregular corneas after wearing CScL for 1 year.

摘要

目的

评估准分子原位角膜磨镶术（LASIK）后角膜不规则患者佩戴角巩膜接触镜（CScL）时的角膜生物力学参数。

方法

两家眼科诊所选取了因LASIK术后角膜表面不规则而佩戴CScL的患者数据。在佩戴CScL之前和之后1年，评估角膜滞后（CH）、角膜阻力因子（CRF）、角膜补偿眼压（IOPcc）和中央角膜厚度。此外，还报告了视力、主观舒适度和CScL佩戴时间。

结果

该研究包括27只眼。最佳眼镜矫正视力与佩戴CScL后视力之间在统计学上有显著差异[平均值±标准差，分别为最小分辨角对数（logMAR）0.16±0.03和0.01±0.06 logMAR；P<0.001]。此外，患者报告主观舒适度评分较高（22只眼感觉舒适或非常舒适）且使用时间延长（平均值±标准差，每天连续佩戴12.67±1.98小时）。CScL佩戴前与佩戴1年后的CRF在统计学上有显著差异（平均值±标准差，分别为7.57±0.87和7.68±0.84 mmHg；P=0.015）。佩戴CScL 1年后，中央角膜厚度、CH和IOPcc有轻微差异（分别为1.78μm、0.04和0.21 mmHg）。