Wagenfeld Lars, Hermsdorf Kristin, Stemplewitz Birthe, Druchkiv Vasyl, Frings Andreas
Department of Ophthalmology, University Medical Centre Hamburg-Eppendorf (UKE), Hamburg.
Department of Ophthalmology, University Hospital Düsseldorf, Heinrich-Heine University, Düsseldorf, Germany.
Clin Ophthalmol. 2017 May 23;11:993-998. doi: 10.2147/OPTH.S132644. eCollection 2017.
To determine the postoperative refractive error in eyes with intraocular gas tamponade in combined phacovitrectomy using a Z-haptic intraocular lens (IOL).
This prospective non-randomized case-control study compared patients with combined phacovitrectomy with or without intraocular gas tamponade to cataract surgery-only. The main outcome measure was the IOL power prediction error (PE). Secondary outcome measures were spherical equivalent, anterior chamber depth (ACD), and axial length.
Thirty-four patients with epiretinal membranes and 18 patients with cataract only were enrolled. There were no statistically significant (>0.05) differences of IOL power PE or postoperative ACDs (=0.952-1.00). Nevertheless, IOL power PE indicated a myopic shift in cases with phacovitrectomy independent of gas tamponade (=1.00). No statistically significant between-group differences between secondary outcome measures were observed.
A myopic shift after phacovitrectomy seems to be independent of the use of intraocular gas tamponade. When using a Z-haptic IOL, aiming for slight residual hyperopia (+0.50 D) is suggested in patients having phacovitrectomy.
确定在使用Z襻人工晶状体（IOL）的白内障玻璃体联合切除术中，眼内注入气体填塞的患者术后屈光不正情况。
这项前瞻性非随机病例对照研究将白内障玻璃体联合切除术联合或不联合眼内气体填塞的患者与单纯白内障手术患者进行了比较。主要观察指标是人工晶状体屈光度预测误差（PE）。次要观察指标是等效球镜度、前房深度（ACD）和眼轴长度。
纳入了34例视网膜前膜患者和18例单纯白内障患者。人工晶状体屈光度PE或术后前房深度在统计学上无显著差异（>0.05）（=0.952 - 1.00）。然而，人工晶状体屈光度PE显示，白内障玻璃体联合切除术患者无论是否有气体填塞均出现近视性偏移（=1.00）。次要观察指标在组间未观察到统计学上的显著差异。
白内障玻璃体联合切除术后的近视性偏移似乎与眼内气体填塞的使用无关。使用Z襻人工晶状体时，建议白内障玻璃体联合切除术患者目标为轻度残余远视（+0.50 D）。
