PURPOSE: To compare visual and anatomic outcomes in eyes with type 2 idiopathic macular telangiectasia (Mactel) treated with either intravitreal bevacizumab (IVB), observation, or pars plana vitrectomy (PPV) with internal limiting membrane removal. METHODS: Retrospective, consecutive, interventional case series of phakic patients with Mactel. Best-corrected Snellen visual acuity (BCVA) and complete ophthalmic exam was obtained prior to treatment and at subsequent 3-month intervals for a minimum of 6 months. Fluorescein angiographic and spectral-domain optical coherence tomography features were examined, and compared to BCVA at treatment initiation and follow-up. RESULTS: Fifty-six eyes of 28 patients were evaluated. Mean age was 65 ± 12 years, and mean follow-up was 24 ± 13 months. Patients were treated with either observation (n = 33), IVB (n = 15), or PPV (n = 8). Mean number of treatments for the IVB group was 2.5 ± 3.5 intravitreal injections. No significant differences in BCVA change were observed between treatment groups via one-way ANOVA (p = 0.49). Presence of inner retinal cysts was not correlated to BCVA (p > 0.05). Discontinuous outer nuclear layer was significantly related to worse initial and final vision, but not to BCVA change. CONCLUSION: IVB and PPV with ILM removal appear ineffective in improving visual outcome in eyes with non-proliferative Mactel. SD-OCT evidence of disrupted foveal outer nuclear layer is related to decreased BCVA, but not related to BCVA change following treatment.
PURPOSE: To compare visual and anatomic outcomes in eyes with type 2 idiopathic macular telangiectasia (Mactel) treated with either intravitreal bevacizumab (IVB), observation, or pars plana vitrectomy (PPV) with internal limiting membrane removal. METHODS: Retrospective, consecutive, interventional case series of phakic patients with Mactel. Best-corrected Snellen visual acuity (BCVA) and complete ophthalmic exam was obtained prior to treatment and at subsequent 3-month intervals for a minimum of 6 months. Fluorescein angiographic and spectral-domain optical coherence tomography features were examined, and compared to BCVA at treatment initiation and follow-up. RESULTS: Fifty-six eyes of 28 patients were evaluated. Mean age was 65 ± 12 years, and mean follow-up was 24 ± 13 months. Patients were treated with either observation (n = 33), IVB (n = 15), or PPV (n = 8). Mean number of treatments for the IVB group was 2.5 ± 3.5 intravitreal injections. No significant differences in BCVA change were observed between treatment groups via one-way ANOVA (p = 0.49). Presence of inner retinal cysts was not correlated to BCVA (p > 0.05). Discontinuous outer nuclear layer was significantly related to worse initial and final vision, but not to BCVA change. CONCLUSION: IVB and PPV with ILM removal appear ineffective in improving visual outcome in eyes with non-proliferative Mactel. SD-OCT evidence of disrupted foveal outer nuclear layer is related to decreased BCVA, but not related to BCVA change following treatment.
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