Abstract
Purpose:
To quantify the degree of aniseikonia after successful repair of rhegmatogenous retinal detachment (RD), and to investigate the relationship between aniseikonia and other visual functions as well as clinical factors.
Methods:
The study included 104 eyes of 104 patients, without any history of ocular disease/surgery and less than 2 dioptors of anisometropia, who had undergone successful retinal reattachment surgery. We examined aniseikonia with New Aniseikonia Test 6 months after surgery. Clinical data were collected, including age, gender, postoperative logarithm of minimum angle of resolution best-corrected visual acuity (logMAR BCVA), severity of metamorphopsia assessed with M-CHARTS, difference of postoperative spherical equivalent between the two eyes, circumferential dimension of retinal tears, area of RD and macular status, to determine the factors related to aniseikonia.
Results:
Thirty of 104 patients (29%) had micropsia, 20 patients (19%) had macropsia, and 54 patients (52%) had no aniseikonia. The mean absolute value of aniseikonia was 2.3 ± 2.9% (range; -12.5% - 12.0%). Of 49 eyes with macula-off RD, 26 had micropsia and 6 had macropsia. Of 55 eyes with macula-on RD, 4 had micropsia and 14 had macropsia. The absolute value of aniseikonia was significantly correlated with logMAR BCVA (p < 0.005), metamorphopsia score (p < 0.005) and the area of RD (p < 0.0001). No significant relationship was found between aniseikonia and other factors. Multiple regression analysis revealed that the absolute value of aniseikonia was significantly related to the area of RD.
Conclusions:
These results suggested that about half of patients with successful repair of RD had aniseikonia. Eyes with macula-off RD tended to show micropsia, while those with macula-on RD mostly presented macropsia. Aniseikonia was associated with visual acuity, metamorphopsia, and the area of RD.
Keywords: 697 retinal detachment •
762 vitreoretinal surgery