Gen Miura1, Takayuki Baba2, Tomoaki Tatsumi1, Takehito Iwase1, Hirotaka Yokouchi1, Shuichi Yamamoto1. 1. Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chiba, Japan. 2. Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chiba, Japan. babatakayuki@nifty.com.
Abstract
PURPOSE: To compare the outcomes of vitrectomy with removal of an idiopathic epiretinal membrane (ERM) in the myopic eyes with long axial length (AL) to that in the eyes with normal AL. METHODS: This was a retrospective, observational, case-control study. Fifty-six eyes of 56 patients with an idiopathic ERM were studied. Twenty-eight of these eyes had an axial length longer than 26.0 mm (Group A), and the other 28 eyes had axial lengths < 26.0 mm (Group B). The age and visual acuity of the two groups were not significantly different. All subjects were treated by vitrectomy and peeling of the ERM with a 25- or 27-gauge system. The postoperative best-corrected visual acuity (BCVA) and optical coherence tomographic findings were determined at 3 and 6 months postoperatively. RESULTS: The mean BCVA improved from 0.35 ± 0.25 to 0.15 ± 0.25 logMAR units in the eyes with the long AL and from 0.35 ± 0.25 to 0.10 ± 0.21 logMAR units in the eyes with normal AL at 6 months postoperatively (both P < 0.001). The postoperative BCVA was not significantly different between the two groups at 6 months (P = 0.221). The central macula was thinner in the eyes of Group A than Group B (P < 0.001). The restorations of the ellipsoid zone and the external limiting membrane were observed in both groups, but the interdigitation zone was less frequently restored in Group A (P < 0.001). CONCLUSIONS: Vitrectomy with the removal of the epiretinal membrane is effective in attaining a good BCVA even in the myopic eyes with long AL.
PURPOSE: To compare the outcomes of vitrectomy with removal of an idiopathic epiretinal membrane (ERM) in the myopic eyes with long axial length (AL) to that in the eyes with normal AL. METHODS: This was a retrospective, observational, case-control study. Fifty-six eyes of 56 patients with an idiopathic ERM were studied. Twenty-eight of these eyes had an axial length longer than 26.0 mm (Group A), and the other 28 eyes had axial lengths < 26.0 mm (Group B). The age and visual acuity of the two groups were not significantly different. All subjects were treated by vitrectomy and peeling of the ERM with a 25- or 27-gauge system. The postoperative best-corrected visual acuity (BCVA) and optical coherence tomographic findings were determined at 3 and 6 months postoperatively. RESULTS: The mean BCVA improved from 0.35 ± 0.25 to 0.15 ± 0.25 logMAR units in the eyes with the long AL and from 0.35 ± 0.25 to 0.10 ± 0.21 logMAR units in the eyes with normal AL at 6 months postoperatively (both P < 0.001). The postoperative BCVA was not significantly different between the two groups at 6 months (P = 0.221). The central macula was thinner in the eyes of Group A than Group B (P < 0.001). The restorations of the ellipsoid zone and the external limiting membrane were observed in both groups, but the interdigitation zone was less frequently restored in Group A (P < 0.001). CONCLUSIONS: Vitrectomy with the removal of the epiretinal membrane is effective in attaining a good BCVA even in the myopic eyes with long AL.
Entities:
Keywords:
Axial length; Epiretinal membrane; High myopia; Visual acuity; Vitrectomy
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