Optical coherence tomography angiography of macular telangiectasia type 2

Session Details

Session Title: Free Paper Session 25: Imaging IV

Session Date/Time: Sunday 10/09/2017 | 10:00-11:30

Paper Time: 10:06

Venue: Room 113

First Author: : M.Abrishami IRAN

Co Author(s): :    A. Mirshahi   M. Mirghorbani                          

Abstract Details

Purpose:

To evaluate retinal vascular layers in Macular Telangiectasia Type 2 (MacTel 2) imaged by Optical Coherence Tomographic Angiography (OCT-A).

Setting:

Eye Research centre, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran

Methods:

Patients with MacTel 2 were enrolled in a prospective, observational case series study. Images of the superficial and deep capillary plexus were analyzed and compared with structural Optical Coherence Tomography (OCT).

Results:

Fourteen eyes of seven patients were enrolled. OCT-A findings were as follows: foveal avascular zone irregularities in both superficial and deep plexuses, avascular areas in parafoveal area and vascular abnormalities like telangiectatic vessels in parafovea. Vascular abnormalities were more pronounced in the deep vascular plexus, vascular abnormalities were observed in areas without retinal degenerations. Vascular changes were mostly focused in temporal parafovea.

Conclusions:

Contrary to previous reports, as evidenced by our case series, vascular abnormities were documented in otherwise normal retina. Microvascular abnormalities in deep capillary plexus and most probably induced ischaemic changes, may precede retinal degeneration.

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