Georgiev Stefan, Hirnschall Nino, Fişuş Andreea-Dana, Ruiss Manuel, Hienert Julius, Leisser Christoph, Findl Oliver
From the VIROS-Vienna Institute for Research in Ocular Surgery, A Karl Landsteiner Institute, Hanusch Hospital, Vienna, Austria .
J Cataract Refract Surg. 2021 Jul 1;47(7):902-906. doi: 10.1097/j.jcrs.0000000000000550.
To evaluate the repeatability of aphakic intraoperative wavefront aberrometry and compare it with preoperative and postoperative aberrometry.
Department of Ophthalmology, Hanusch Hospital, Vienna, Austria.
Prospective case series.
Patients scheduled for cataract surgery were each measured 3 consecutive times using Hartmann-Shack wavefront sensing (HS-WFS) preoperatively, intraoperatively in aphakia, and 2 months postoperatively after intraocular lens implantation by a single examiner. Intraclass correlation coefficients (ICCs) of spherical equivalent (SE) values were evaluated for each timepoint. Intrasubject standard deviation (Sw) as repeatability (Sr) with corresponding repeatability limit () and mean SE differences with corresponding limits of agreement (LoA) were calculated for comparison.
A high consistency of repeated measurements was found with ICCs above 0.9 for each of the 3 timepoints. Intraobserver repeatability (Sr) and repeatability limit (r) of intraoperative aberrometry SE measurements (30 eyes of 30 patients) were 0.34 diopters (D) and 0.95 D, respectively. The LoA for intraoperative aphakic SE across 3 consecutive measurements were -0.71 to +0.85 D. For comparison, Sr and r for phakic preoperative measurements in the cataractous state (30 eyes of 30 patients) and postoperative measurements in the pseudophakic state (24 eyes of 24 patients) were 0.33 D and 0.93 D and 0.23 D and 0.64 D, respectively. Similarly, the LoA for preoperative and postoperative SE measurements were -0.66 to +0.60 D and -0.27 to +0.45 D, respectively.
HS-WFS test-retest reliability was high for all 3 timepoints, but the intraoperative setting resulted in a lower repeatability and broadened the agreement range.
评估无晶状体眼术中波前像差测量的可重复性，并将其与术前和术后像差测量结果进行比较。
奥地利维也纳哈努施医院眼科。
前瞻性病例系列。
计划进行白内障手术的患者由一名检查者术前、术中无晶状体眼状态下以及人工晶状体植入术后2个月使用哈特曼-夏克波前传感（HS-WFS）连续测量3次。评估每个时间点球镜等效度（SE）值的组内相关系数（ICC）。计算受试者内标准差（Sw）作为重复性（Sr）以及相应的重复性限（r），并计算平均SE差异及相应的一致性界限（LoA）用于比较。
在3个时间点中的每一个，重复测量均具有高度一致性，ICC均高于0.9。术中像差测量SE值（30例患者的30只眼）的观察者内重复性（Sr）和重复性限（r）分别为0.34屈光度（D）和0.95 D。连续3次测量的术中无晶状体眼SE的LoA为-0.71至+0.85 D。作为比较，白内障状态下有晶状体眼术前测量（30例患者的30只眼）和人工晶状体眼状态下术后测量（24例患者的24只眼）的Sr和r分别为0.33 D和0.93 D以及0.23 D和0.64 D。同样，术前和术后SE测量的LoA分别为-0.66至+0.60 D和-0.27至+0.45 D。
HS-WFS在所有3个时间点的重测可靠性都很高，但术中测量的重复性较低，且一致性范围更宽。
