scholarly journals Optical Coherence Tomography Angiography to Better understand Glaucoma

2017 ◽  
Vol 11 (2) ◽  
pp. 35-37 ◽  
Author(s):  
Gábor Holló

ABSTRACT The term optical coherence tomography angiography (OCTA) comprises different OCT-based technologies which all allow noninvasive assessment of retinal perfusion, based on moving red blood cells. The main areas where OCTA is currently used are investigation of perfusion and vascular structure of the macular retina (e.g., in macular degenerations and diabetic macular diseases) and the disk and peripapillary retina (in glaucoma and other optic disk diseases). The current editorial provides a brief overview on the potential of OCTA and its use to measure perfusion in the peripapillary retina in glaucoma. How to cite this article Holló G. Optical Coherence Tomography Angiography to Better understand Glaucoma. J Curr Glaucoma Pract 2017;11(2):35-37.

2019 ◽  
pp. 112067211986401
Author(s):  
Gilda Cennamo ◽  
Daniela Montorio ◽  
Maria Angelica Breve ◽  
Vincenzo Brescia Morra ◽  
Giovanni Cennamo

This study describes the optical coherence tomography and optical coherence tomography angiography features of three eyes of three patients affected by contractile morning glory syndrome. Optical coherence tomography angiography scans of the peripapillary retina revealed a dense microvascular network without any vascular difference between the superficial vascular plexus and the deep vascular plexus around the optic nerve. These optical coherence tomography angiography findings confirm that the contractile movement could be due to the presence of an autonomic cholinergic muscular mechanism in the posterior part of the globe. In fact in our cases, the contractile movement seemed to be induced by massage of the eyeball. Optical coherence tomography angiography is a valid, non-invasive, dyeless, and reliable method that could shed light on the pathogenesis of this rare disease of the optic disk.


Author(s):  
Paris Tranos ◽  
Evdoxia-Maria Karasavvidou ◽  
Olga Gkorou ◽  
Carlos Pavesio

AbstractBefore the introduction of optical coherence tomography angiography (OCTA) in the early 2000s, dye-based angiography was considered the “gold standard” for the diagnosis and monitoring of ocular inflammation. OCTA is a novel technique, which demonstrates capillary networks based on the amount of light returned from moving blood cells, providing further information on pathophysiological changes in uveitis.The aim of this review is to describe the basic principles of OCTA and its application to ocular inflammatory disorders. It particularly emphasizes on its contribution not only in the diagnosis and management of the disease but also in the identification of possible complications, comparing it with fundus fluorescein angiography (FFA) and indocyanine green angiography (ICGA). Although the advent of OCTA has remarkably enhanced the assessment of uveitic entities, we highlight the need for further investigation in order to better understand its application to these conditions.


2015 ◽  
Vol 133 (9) ◽  
pp. 1045 ◽  
Author(s):  
Liang Liu ◽  
Yali Jia ◽  
Hana L. Takusagawa ◽  
Alex D. Pechauer ◽  
Beth Edmunds ◽  
...  

2020 ◽  
pp. 112067211989990 ◽  
Author(s):  
Pınar Bingöl Kızıltunç ◽  
Huban Atilla

Purpose: To demonstrate macular and optic disk vessel changes by optical coherence tomography angiography during and after a migraine attack with aura Methods: Case report Results: A 34-year-old healthy female patient was evaluated by optical coherence tomography angiography imaging during visual aura with phosphenes in the left visual field. Optical coherence tomography angiography imaging showed diffuse narrowing of the retinal vessels, decreased radial peripapillary capillary density, and decreased superficial and deep foveal vessel density in the right eye. These changes improved 3 hours after visual aura. The patient suffered from right eye pain and right-sided headache, which are typical for migraine, after the visual aura. Conclusion: These findings indicate that blood flow during migraine attack is reduced not only in the brain but also in the eye. Eye pain in migraine patients may be due to decreased blood flow in the eye. Restoring the vascular changes 3 hours after the visual aura suggests that vascular changes may be transient during a migraine attack.


Author(s):  
Paulo E. Stanga ◽  
Alessandro Papayannis ◽  
Emmanouil Tsamis ◽  
Katarzyna Chwiejczak ◽  
Francesco Stringa ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document