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KMID : 0360220130540111731
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Journal of the Korean Ophthalmological Society
2013 Volume.54 No. 11 p.1731 ~ p.1736
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Long-Term Changes in Foveal Microstructure after Macular Hole Surgery
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Jeong Seong-Hun
Kim Jae-Hui
Kim Jong-Woo
Kim Chul-Gu
Lee Tae-Gon
Cho Sung-Won
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Abstract
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Purpose: To evaluate long-term outcome of foveal tissue elongation after macular hole (MH) surgery.
Methods: This retrospective, observational case series was performed on patients who underwent MH surgery and were followed-up more than 12 months. Distance between the parafoveal edge of the outer plexiform layer (OPL) was defined as the inter-OPL distance and measured using optical coherence tomography images at 5 to 8 months postoperatively and at the last follow-up. The horizontal and vertical inter-OPL distances were compared between the 2 defined time points. In addition, further elongation of the foveal tissue in certain directions was defined as asymmetric elongation and was compared between the defined time points.
Results: The early and late postoperative examination was performed at 6.3 ± 1.1 (mean ± standard deviation) months and 22.7 ± 7.8 months, respectively. The horizontal inter-OPL distance was 552.3 ± 130.5 μm and 502.8 ± 139.3 μm at the defined time points, respectively and the vertical inter-OPL distance was 478.9 ± 107.2 μm and 447.5 ± 107.1 μm, respectively. Both horizontal and vertical inter-OPL distances were significantly shortened at the last postoperative examination (p < 0.001, p = 0.002, respectively). The degree of asymmetric elongation was 10.8 ± 6.5% and 11.8 ± 7.9% at the defined time points, respectively, and was not different between the defined time points (p = 0.426).
Conclusions: The long-term shortening of foveal tissue after MH surgery without progression of asymmetry may partially contribute to the long-term recovery of visual function after MH surgery.
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KEYWORD
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Elongation, Fovea, Macular hole, Optical coherence tomography
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