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Vitrectomy for epiretinal membrane in eyes with a preoperative visual acuity ≥ 20/40 (0.3 LogMAR)
Author(s) -
BERROD JP,
SAYEN A,
HUBERT I
Publication year - 2010
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2010.3114.x
Subject(s) - vitrectomy , medicine , epiretinal membrane , visual acuity , ophthalmology , internal limiting membrane , macular hole , surgery
Purpose To evaluate the functional and anatomical outcomes of vitrectomy for epiretinal membrane (ERM) in eyes with a preoperative (acuity (VA) ≥ 0,3 LogMAR (20/40) . Methods Sixty‐seven of sixty‐six consecutive patients that undergone surgery for an idiopathic ERM were studied retrospectively. A combined surgery was performed on phakic eyes (n=45). The other eyes were all pseudophakic (n=22). All patients underwent ERM and internal limiting membrane removal by using 20 (n=19) or 23‐gauge (n=48) vitrectomy. The main studied criteria were preoperative and postoperative best corrected visual acuity (BCVA), preoperative and postoperative central macular thickness (CMT) and integrity of junction between inner and outer segments of photoreceptors (IS/OS junction) evaluated with OCT. Results The mean preoperative VA was 0.28 logMAR (range 0.15 logMAR to 0.3 logMAR). The mean VA improved to 0.19 logMAR at a mean of 27 months following surgery (p<0.0001). 71,6 % patients recovered visual acuity ≥ 0,1 logMAR (20/25). The mean preoperative CMT was 367 μm and the mean postoperative CMT was 304 μm . No correlation between postoperative BCVA and postoperative central macular thickness was noted (p=0.46). The preoperative integrity of the IS/OS line correlated with postoperative BCVA (p=0.004) but not with BCVA improvement (p=0.177). Conclusion Vitrectomy for epiretinal membrane is a safe and effective procedure that provides VA ≥ 0,1 LogMAR in 71,6% eyes with relatively good preoperative VA ( ≥ 0,3 LogMAR).Besides the baseline VA, the integrity of the IS/OS line can be used to predict excellent functional outcomes after surgery.