title: Aniseikonia following pneumatic retinopexy for rhegmatogenous retinal detachment.
abstract: OBJECTIVE
  To evaluate the characteristics of aniseikonia in patients with rhegmatogenous retinal detachment (RD) after pneumatic retinopexy.
  
  
  METHODS
  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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Ophthalmology, Taichung Veterans General Hospital, Taichung City, Taiwan; Central Taiwan University of Science and Technology, Taichung City, Taiwan.
authors.forename: Hsin-Nung
authors.initials: HN
authors.lastname: Lee
authors.affiliation: Department of Ophthalmology, Taichung Veterans General Hospital, Taichung City, Taiwan; Central Taiwan University of Science and Technology, Taichung City, Taiwan. Electronic address: linkh76@hotmail.com.
authors.forename: Keng-Hung
authors.initials: KH
authors.lastname: Lin
authors.affiliation: Department of Ophthalmology, Taichung Veterans General Hospital, Taichung City, Taiwan.
authors.forename: Hin-Yeung
authors.initials: HY
authors.lastname: Tsai
authors.affiliation: Department of Ophthalmology, Taichung Veterans General Hospital, Taichung City, Taiwan.
authors.forename: Ying-Cheng
authors.initials: YC
authors.lastname: Shen
authors.affiliation: Department of Ophthalmology, Taichung Veterans General Hospital, Taichung City, Taiwan.
authors.forename: Chun-Yuan
authors.initials: CY
authors.lastname: Wang
authors.affiliation: Central Taiwan University of Science and Technology, Taichung City, Taiwan.
authors.forename: Richard
authors.initials: R
authors.lastname: Wu
mesh_terms: D000293:Adolescent; D000328:Adult; D000839:Aniseikonia / Q000175:diagnosis / Q000209:etiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D013508:Ophthalmologic Surgical Procedures / Q000009:adverse effects*; D011183:Postoperative Complications; D011379:Prognosis; D011446:Prospective Studies; D012160:Retina / Q000473:pathology / Q000601:surgery*; D012163:Retinal Detachment / Q000601:surgery*; D013997:Time Factors; D041623:Tomography, Optical Coherence; D055815:Young Adult