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Rieko Kato, Yutaka Imamura, Yoshikazu Ichikawa, Masahiro Ishida; Retinal thickness after internal limiting membrane peeling for idiopathic macular hole: Correlation with macular hole size. Invest. Ophthalmol. Vis. Sci. 2016;57(12):1072.
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© ARVO (1962-2015); The Authors (2016-present)
To examine the change of macular thickness after internal limiting membrane peeling for idiopathic macular hole and its correlation with macular hole size.
This is a retrospective observational case series. Thirty-three eyes of 32 patients (14 male and 18 female, mean age: 64.2±8.8years) were studied. Macular thicknesses in the 4 inner ETDRS subfields were measured before and 2 weeks and 1,3,6, and 12 months after surgery.
The mean thickness in temporal subfield was 362.8±29.9µm preoperatively and 337.9±20.6µm at 2 weeks, 329.7±20.1µm at 1 month, 316.3±19.7µm at 3 months (31 eyes), 311.3±20.5µm at 6 months (32 eyes), and 307.6±20.2µm at 12 months after the surgery. In nasal subfield, macular thicknesses were 385.5±35.9µm preoperatively, 383.4±29.0µm at 2 weeks and 371.3±23.2µm at 12 months postoperatively. The postoperative thicknesses in temporal, superior and inferior subfields were significantly thinner than the preoperative thickness at all times (paired t tests, p<0.01, except for p<0.05 at 2 weeks in inferior subfield). In nasal subfield, only postoperative thickness at 12 months was significantly thinner than the preoperative thickness (p<0.05). The percentage changes of thicknesses in all the 4 subfields at 2 weeks were significantly correlated with the basal and maximum diameters of the macular hole (Spearman rank correlation, p<0.01, except for p<0.05 in superior with minimum diameter).
The larger the macular hole, macula becomes thinner after vitrectomy with internal membrane peeling.
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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