Enoch J M
School of Optometry, University of California at Berkeley 94720-2020, USA.
J Refract Surg. 1997 Jan-Feb;13(1):79-82. doi: 10.3928/1081-597X-19970101-17.
Aniseikonia is a difference in perceived image size in the two eyes resulting in asthenopic symptoms and distortions of binocular space perception. This is a complication of refractive and implant surgery in patients with binocular vision. While many individuals adapt readily to modest aniseikonic errors, quite a number do not.
Few instruments exist to adequately test for aniseikonia. A means is described to determine if aniseikonia exists and a series of simple steps is suggested to minimize aniseikonia induced by refractive surgery or by surgery for removal of cataract and intraocular lens insertion. Also, using the proposed protocol, it is possible to determine if existing image size differences resulting from prior and/or induced aniseikonia are predominantly refractive or axial. A case report is presented.
The techniques described are not costly, provide no risk, take little time, and resolve or meaningfully reduce aniseikonia in many patients having non-extreme errors of this type.
影像不等是指双眼所感知的图像大小存在差异，会导致视疲劳症状以及双眼空间感知的扭曲。这是双眼视觉患者屈光手术和植入手术的一种并发症。虽然许多人能够轻松适应适度的影像不等误差，但相当一部分人却不能。
几乎没有仪器能够充分检测影像不等。本文描述了一种确定影像不等是否存在的方法，并提出了一系列简单步骤，以尽量减少屈光手术、白内障摘除术和人工晶状体植入术所引起的影像不等。此外，使用所提出的方案，可以确定由先前和/或诱发的影像不等导致的现有图像大小差异主要是屈光性的还是轴性的。本文还给出了一个病例报告。
所描述的技术成本不高、无风险、耗时短，并且能够解决或显著减少许多存在此类非极端误差的患者的影像不等问题。
