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Mounir Benzerroug, Sibel Molva, Dominique Bremond-Gignac, Solange Milazzo; Spectral-Domain Optical Coherence Tomography Findings of Eyes With Idiopathic Macular Telangiectasia. Invest. Ophthalmol. Vis. Sci. 2013;54(15):5857.
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© ARVO (1962-2015); The Authors (2016-present)
To describe Spectral-Domain (SD) OCT findings of eyes with type 1, type 2 and type 3 macular telangiectasia (according to Gass and Blodi classification).
Retrospective chart review of 10 patients (15 eyes) diagnosed with idiopathic macular telangiectasia was performed between january 2011 and november 2012 in a tertiary referral hospital. All patients underwent fluorescein angiography (FA), SD OCT (Topcon® 3D OCT 2000) examination. After a baseline evaluation, all patients were followed up and treatments were performed depending on macular telangiectasia’s type.
The average age of the patients was 68 years. Five patients (5 eyes) had a type 1 telangiectasia, four patients (8 eyes) a type 2 and one patient (2 eyes) a type 3. SD OCT showed in type 1 macular telangiectasia cystic changes in 6 eyes, sub-retinal fluid in 4 eyes and inner and outer photoreceptor segment layer disruption in 3 eyes. In type 2 macular telangiectasia, SD OCT showed cystic changes without retinal thickening in 6 eyes and retinal atrophy in 3 eyes. Finally, SD OCT showed in type 3 telangiectasia a preservation of the inner and outer photoreceptor segment layer in 2 eyes despite of cystic changes. During a mean follow-up of 9.4 months, 3 eyes had intravitreal injections of bevacizumab, 3 had a focal laser photocoagulation and one eye was treated with intravitreal injection of triamcinolone.
High-resolution SD OCT findings show that eyes with idiopathic macular telangiectasia have varying degree of abnormality at different layers of the retina and more particularly in the inner and outer photoreceptor segment layer. Also, SD OCT imaging may be used to improve our understanding of different types of macular telangiectasia.
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