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. 2014;232(3):170-8.
doi: 10.1159/000364811. Epub 2014 Oct 15.

Evaluating dissociated optic nerve fiber layer appearance using en face layer imaging produced by optical coherence tomography

Sentaro Kusuhara  1 , Wataru Matsumiya, Hisaori Imai, Shigeru Honda, Yasutomo Tsukahara, Akira Negi
Affiliations

Evaluating dissociated optic nerve fiber layer appearance using en face layer imaging produced by optical coherence tomography

Sentaro Kusuhara et al. Ophthalmologica. 2014.

Abstract

Purpose: To investigate the incidence of and risk factors for a dissociated optic nerve fiber layer (DONFL) appearance after pars plana vitrectomy (PPV).

Methods: We retrospectively reviewed 189 eyes that underwent PPV with internal limiting membrane removal and judged the presence/absence of an apparent DONFL based on en face layer images produced by spectral-domain optical coherence tomography (SD-OCT).

Results: An apparent DONFL was observed in 47 (24.9%) eyes. The incidence of an apparent DONFL was significantly higher in the macular hole (MH) group (76.5%) than in the non-MH group (epiretinal membrane, diabetic macular edema, retinal vein occlusion, and others; 4.9%; p < 0.001). In the logistic regression analysis, surgical indication for MH was identified as the most significant DONFL risk factor (odds ratio 63.7; p = 1.05 × 10(-8)).

Conclusion: Postoperative OCT en face layer imaging clarified that MH eyes are liable to have an apparent DONFL following PPV.

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