From the Copenhagen Eye Center and Aros Private Hospital, Aarhus, Denmark (Olsen); Great Lakes Eye Care, Saint Joseph, Michigan (Cooke); Vienna Institute for Research in Ocular Surgery (VIROS), Hanusch Hospital, Vienna, Austria (Findl); Anterior Segment and Refractive Surgery Department, Rothschild Foundation Hospital, Paris, France (Gatinel); Cullen Eye Institute, Baylor College of Medicine, Houston, Texas (Koch); Institut für Experimentelle Ophthalmologie, Universität des Saarlandes, Homburg/Saar, Germany (Langenbucher); The Permanent Medical Group, Redwood City Medical Center, Redwood City, California (Melles); Department of Ophthalmology, Tan Tock Seng Hospital, Singapore (Yeo).
J Cataract Refract Surg. 2023 Jun 1;49(6):556-557. doi: 10.1097/j.jcrs.0000000000001159.
Improvement in biometry and formulas has raised the bar for accurate intraocular lens (IOL) power calculation. However, when we look closely at the performance of a specific IOL model, we often find that the prediction error varies with the implant power. This phenomenon has no explanation other than that the optic design of the IOL has shifted over the power range, thereby disrupting the assumptions of the calculations. By this report, we call the industry to be more transparent and disclose the basic information about the IOL design that is important for accurate IOL power calculation. The relevant information concerns the refractive index, the central optic thickness, the anterior and posterior curvature radii, the toricity location, the spherical aberration, and haptic angulation. The goal is to predict possible shifts in principal planes or IOL position over the power range causing a refractive surprise if not corrected for.
生物测量和公式的改进提高了准确计算人工晶状体（IOL）屈光力的标准。然而，当我们仔细观察特定 IOL 模型的性能时，我们经常会发现预测误差随植入物屈光力的变化而变化。除了 IOL 的光学设计在屈光力范围内发生了偏移，从而破坏了计算的假设之外，这种现象没有其他解释。通过本报告，我们呼吁行业更加透明，并披露对准确计算 IOL 屈光力至关重要的 IOL 设计的基本信息。相关信息涉及折射率、中央光学厚度、前曲率半径、后曲率半径、散光位置、球差和襻角度。目标是预测在屈光力范围内可能导致主要平面或 IOL 位置发生偏移的情况，如果不进行修正，可能会导致屈光意外。
