Aniseikonia Following Pneumatic Retinopexy for Rhegmatogenous Retinal Detachment

• Published in: American journal of ophthalmology Vol. 158; no. 5; pp. 1056 - 1061.e2
• Main Authors: Lee, Hsin-Nung, Lin, Keng-Hung, Tsai, Hin-Yeung, Shen, Ying-Cheng, Wang, Chun-Yuan, Wu, Richard
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.11.2014; Elsevier Limited
• Subjects: Adolescent; Adult; Age; Aniseikonia - diagnosis; Aniseikonia - etiology; Cataracts; Female; Follow-Up Studies; Humans; Male; Middle Aged; Ophthalmologic Surgical Procedures - adverse effects; Ophthalmology; Photoreceptors; Postoperative Complications; Prognosis; Prospective Studies; Retina; Retina - pathology; Retina - surgery; Retinal Detachment - surgery; Surgery; Surgical outcomes; Time Factors; Tomography, Optical Coherence; Young Adult
• ISSN: 0002-9394; 1879-1891
• DOI: 10.1016/j.ajo.2014.08.005

Purpose To evaluate the characteristics of aniseikonia in patients with rhegmatogenous retinal detachment (RD) after pneumatic retinopexy. Design Prospective, interventional case series study. Methods Thirty patients who had undergone pneumatic retinopexy as the initial procedure for rhegmatogenous retinal detachment were selected for this study. The principal outcomes included visual acuity, postoperative aniseikonia measured by the New Aniseikonia Test, anatomical success, and measurement of central retinal thickness using optical coherence topography (OCT). These outcomes were measured postoperatively at 3, 6, and 12 months. Results The median patient age was 37 years (range, 13–57 years), with 17 cases of macula-off RD and 13 cases of macula-on RD. All of these patients achieved anatomical success, proven by OCT after surgical repair. Three months after pneumatic retinopexy, 18 patients (60.0%) developed micropsic aniseikonia and aniseikonia was diagnosed in 15 patients (88.2%) in the macula-off RD group, leaving 2 patients (11.8%) unaffected. In the macula-on RD group, 3 patients (23.1%) were found to have aniseikonia, while 10 patients (76.9%) were unaffected. The presence of aniseikonia was strongly linked to the difference in central retinal thickness, between the operated eye and the fellow eye, measured at 12 months postoperatively. Conclusion Aniseikonia after pneumatic retinopexy for rhegmatogenous RD may be related to the preoperative macular status. Macula-off RD patients had a higher incidence of aniseikonia, compared to macula-on RD patients, following retina reattachment. There was a moderate to high correlation between the grading of aniseikonia and the difference in central retinal thickness.