Eissa Sherif A, Sadek Sherin H, El-Deeb Mohamed W A
Ophthalmology Department, Faculty of Medicine, Cairo University, Kasr Al Ainy, Cairo, Egypt.
Ophthalmology Department, Faculty of Medicine, Fayoum University, Al Fayoum, Egypt.
J Ophthalmol. 2016;2016:1383289. doi: 10.1155/2016/1383289. Epub 2016 Dec 8.
To assess intraocular pressure (IOP), lens vaulting, and anterior chamber (AC) angle width, following V4C implantable Collamer lens (ICL) procedure for myopic refractive error. A prospective case series that enrolled 54 eyes of 27 patients that were evaluated before and after V4C phakic posterior chamber Collamer lens implantation for correction of myopic refractive error. Preoperative measurement of IOP was done using Goldmann applanation tonometer and anterior chamber angle width using both Van Herick slit lamp grading system and Scheimpflug tomography imaging (Oculus Pentacam). Follow-up of the aforementioned variables was at 1, 6, and 18 months postoperatively, together with ICL vault measurements. The mean baseline IOP of 11.69 ± 2.15 showed a statistically significant ( = 0.002) increase after 1 month that remained unchanged at 6 and 18 months postoperatively, with mean value of 16.07 ± 4.12, 16.07 ± 4.10, and 16.07 ± 4.13, respectively. Pentacam AC angle width showed a statistically significant decrease at 1 ( = 0.025), 6 ( = 0.016), and 18 ( = 0.010) months postoperatively, with mean preoperative value of 40.14 ± 5.49 that decreased to 25.28 ± 5.33, 25.46 ± 5.44, and 25.49 ± 5.38, at 1, 6, and 18 months, respectively. Mean ICL vault showed moderate correlation with Pentacam AC angle width at 1 ( = -0.435) and 6 ( = -0.424) months. . V4C ICL implantation resulted in decrease in AC angle width and increase in IOP, within acceptable physiological values at all time points.
为评估近视屈光不正患者行V4C植入式可折叠人工晶状体（ICL）手术后的眼压（IOP）、晶状体拱高及前房（AC）角宽度。这是一项前瞻性病例系列研究，纳入了27例患者的54只眼，在V4C有晶状体眼后房可折叠人工晶状体植入矫正近视屈光不正前后进行评估。术前使用Goldmann压平眼压计测量眼压，使用Van Herick裂隙灯分级系统和Scheimpflug断层扫描成像（Oculus Pentacam）测量前房角宽度。术后1、6和18个月对上述变量进行随访，并测量ICL拱高。平均基线眼压为11.69±2.15，术后1个月出现统计学显著升高（P = 0.002），术后6个月和18个月保持不变，平均值分别为16.07±4.12、16.07±4.10和16.07±4.13。Pentacam测量的前房角宽度在术后1个月（P = 0.025）、6个月（P = 0.016）和18个月（P = 0.010）出现统计学显著减小，术前平均值为40.14±5.49，在1、6和18个月时分别降至25.28±5.33、25.46±5.44和25.49±5.38。平均ICL拱高在术后1个月（r = -0.435）和6个月（r = -0.424）与Pentacam测量的前房角宽度呈中度相关。V4C ICL植入导致前房角宽度减小和眼压升高，在所有时间点均处于可接受的生理值范围内。
