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Yuki Moriya, Fumiki Okamoto, Yoshimi Sugiura, Tomoya Murakami, Yoshifumi Okamoto, Tetsuro Oshika; Time course of changes in aniseikonia following vitrectomy for macular hole. Invest. Ophthalmol. Vis. Sci. 2016;57(12):1086.
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© ARVO (1962-2015); The Authors (2016-present)
To quantify the degree of aniseikonia in patients undergoing vitrectomy for macular hole (MH), and to investigate the relationship between aniseikonia and foveal microstructures with spectral-domain optical coherence tomography (SD-OCT).
This study included 50 eyes of 50 patients with idiopathic MH. We evaluated aniseikonia with the New Aniseikonia Test and retinal microstructure with SD-OCT before and 3 and 6 months after surgery. Based on the obtained OCT images, we quantified the following parameters using an image-processing program: hole height, minimum diameter, and base diameter of MH.
Before surgery, 25 of 50 patients (50%) had micropsia, 6 patients (12%) had macropsia, and 19 patients (38%) had no aniseikonia. Mean preoperative aniseikonia was 3.0% [range -14% ~ +5%]. Postoperative aniseikonia at 3 months and 6 months was 1.3% and 1.6%, respectively, which significantly improved from the preoperative level. Preoperative aniseikonia was not associated with postoperative aniseikonia (p = 0.22). Preoperative and postoperative aniseikonia was significantly related to the base diameter of MH (p<0.05 and p<0.05, respectively).
Half of the patients with MH exhibited micropsia, which improved by surgery. The amount of aniseikonia was associated with the base diameter of MH.
This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.
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