Journal
OPHTHALMOLOGY
Volume 116, Issue 12, Pages 2430-2436Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ophtha.2009.06.001
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Funding
- Danish Eye Health Society
- Danish Medical Research Council
- John and Birthe Meyer Foundation
- Velux Foundation
- Juvenile Diabetes Research Foundation [8-2002-130]
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Purpose: To assess the prognostic significance for visual function of persistent subfoveal fluid and persistent photoreceptor layer discontinuity in eyes in which hole closure had been obtained 3 months after macular hole surgery. Design: Ancillary study of subjects enrolled in a randomized clinical trial. Participants: Participants were recruited from a randomized clinical trial evaluating internal limiting membrane (ILM) peeling in macular hole surgery. The study included 74 eyes in which a contiguous retinal surface or a full attachment with a flat neuroretinal rim had been reestablished after macular hole surgery. Methods: Contrast-enhanced optical coherence tomography was used to detect closure defects involving substrata of the retina with particular emphasis on the photoreceptor layer. Outcomes were compared with best-corrected visual acuity (BCVA) 12 months after surgery. Main Outcome Measures: Postoperative foveal configuration and foveal photoreceptor layer discontinuity diameter 3 months after macular hole surgery. Results: Persistent subfoveal fluid 3 months after macular hole surgery, which was found in 36.5% of eyes, was not associated with a significantly different BCVA after 12 months compared with eyes with a fully attached fovea at 3 months (70.9 letters vs. 72.0 letters; P = 0.59). Receiver operating characteristics curve analysis identified persistent photoreceptor layer discontinuity of a diameter of more than 1477 mu m after 3 months to be associated with poorer BCVA after 12 months (P<0.001), yet an overall reduction in discontinuity diameter from 3 to 12 months (P<0.001) was not correlated with a concurrent improvement in BCVA (r = -0.040; P = 0.81). Persistence of fluid and diameter of discontinuity at 3 months were not related to whether ILM peeling was used; however, secondary macular hole surgery had a significant influence on diameter of photoreceptor layer discontinuity at 3 months. Conclusions: Structural recovery in the form of photoreceptor layer discontinuity with a diameter of more than approximately 1500 mu m 3 months after macular hole surgery was associated with poorer visual acuity after 12 months than less extensive discontinuity. Subfoveal fluid persisting after 3 months had disappeared after 12 months in all but 5 of 74 eyes and had no effect on final visual outcome.
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