Optical Coherence Tomography Angiography Features of Idiopathic Macular Telangiectasia Type 2 and Macular Branch Retinal Vein Occlusion

Idiopathic macular telangiectasia type 2 (IMT2) is a relatively uncommon clinical condition with an estimated prevalence of 1% within the general population. This condition can be challenging to precisely identify in early stages but advancements in clinical imaging to include fluorescein angiography and optical coherence tomography angiography (OCTA) can allow for timely diagnosis and prompt intervention that may leads to improved long-term clinical outcomes. Emerging literature has recognized the role of macular pigment (MP) in IMT2 in terms of Henle fiber layer deposition mechanisms and potential mitigation of inflammatory and oxidative stress. Primary care optometrists are in a unique position to facilitate early detection and manage through close evaluation and individualized lutein and zeaxanthin supplementation. Keywords: Idiopathic macular telangiectasia type 2; Macular pigment; Spectral domain optical coherence tomography angiography

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Optical Coherence Tomography Angiography of Macular Telangiectasia Type 2 with Associated Subretinal Neovascular Membrane

Case Reports in Ophthalmological Medicine ◽

10.1155/2017/8186134 ◽

2017 ◽

Vol 2017 ◽

pp. 1-4

Author(s):

Victor M. Villegas ◽

Jaclyn L. Kovach

Keyword(s):

Optical Coherence Tomography ◽

Optical Coherence Tomography Angiography ◽

Optical Coherence ◽

Subretinal Neovascularization ◽

Macular Telangiectasia ◽

Capillary Plexus ◽

Macular Telangiectasia Type 2 ◽

Subretinal Neovascular Membrane ◽

Choroidal Vasculature

Optical coherence tomography angiography (OCTA) is a recently established noninvasive technology for evaluation of the retinal and choroidal vasculature. The literature regarding the findings in macular telangiectasia type 2 (MacTel2) is scarce. We report the OCTA findings associated with a subject with MacTel2 and secondary subretinal neovascularization (SNV). The commercially available Cirrus 5000 with AngioPlex (Zeiss, Jena, Germany) was used, without any subsequent image modification or processing. Subretinal neovascularization was detectable with OCTA at the level of the outer retina and choriocapillaris. Microvascular abnormalities associated with MacTel2 were present mostly in the deep capillary plexus of the retina temporally.

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Optical Coherence Tomography Angiography in Monitoring Proliferative Macular Telangiectasia Type 2 Treatment Response

Ophthalmic Surgery Lasers and Imaging Retina ◽

10.3928/23258160-20190806-02 ◽

2019 ◽

Vol 50 (8) ◽

pp. 485-491

Author(s):

Rania G. Estawro ◽

Sherif N. Embabi

Keyword(s):

Optical Coherence Tomography ◽

Treatment Response ◽

Optical Coherence Tomography Angiography ◽

Optical Coherence ◽

Macular Telangiectasia ◽

Macular Telangiectasia Type 2

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Fundus Fluorescein Angiography, Optical Coherence Tomography, and Optical Coherence Tomography Angiography Findings in Branch Retinal Vein Occlusion

Güncel Retina Dergisi (Current Retina Journal) ◽

10.37783/crj-0144 ◽

2019 ◽

pp. 83-87

Keyword(s):

Optical Coherence Tomography ◽

Fluorescein Angiography ◽

Retinal Vein Occlusion ◽

Branch Retinal Vein Occlusion ◽

Optical Coherence Tomography Angiography ◽

Serous Retinal Detachment ◽

Optical Coherence ◽

Fundus Fluorescein Angiography ◽

Vein Occlusion ◽

Capillary Plexus

Even though the diagnosis depends on clinical examination, in cases with branch retinal vein occlusion (BRVO), fundus fluorescein angiography (FFA), optical coherence tomography (OCT), and optical coherence tomography angiography (OCTA) provide unique data for follow-up, management and prognosis. In FFA, delay of laminar flow phase in the involved branch, hyperfluorescence due to leakage from the vessel wall in the late phases, hypofluorescence due to the blockage by hemorrhage, and soft exudates, and hyperfluorescence due to macular edema can be detected. In OCT, macular thickening, cystic spaces, serous retinal detachment, hyperreflective dots, disorganization of the outer retinal layers – particularly the photoreceptor inner and outer segments line and the external limiting membrane – can be seen. OCTA reveals non-perfusion, particularly in the deep capillary plexus.

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