Open AccessMULTIMODAL IMAGING OF CORNEAL NEOVESSELS: OCT ANGIOGRAPHY IN COMPARISON TO FLUORESCEIN ANGIOGRAPHY ON 10 EYES AND REVIEW OF THE LITERATURE
Author(s) -
Younes Akannour,
AUTHOR_ID,
Tazi Habiba,
Louai Serghini,
E. Abdallah,
A. Berraho,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2021
Publication title -
international journal of advanced research
Language(s) - English
Resource type - Journals
ISSN - 2320-5407
DOI - 10.21474/ijar01/13734
Subject(s) - medicine , fluorescein angiography , ophthalmology , angiography , radiology , visual acuity
The use of OCT angiography for the analysis of neovessels of the ocular surface is currently at the experimental stage. Through this work we evaluate the benefits of OCTA in the detection of corneal neovessels, their depth and surface, the signs suggestive of activity / quiescence in comparison to fluorescein angiography. Materials And Methods:10 patients (10 eyes) with corneal neovessels (CNV) were prospectively recruited to Ophthalmology B at the Rabat Specialty Hospital between June and September 2019. All patients received OCT A fluorescein angiography (AF) at two-week intervals. Results:The results of the OCT A matched the AF data by showing immature neovessel (NV) characteristics for the early-diffusing NVs, allowing the study of the structure : trunk, numbers of segments, and fractal divisions, the existence of apical loop. As well as the detection of the flow level, exudative phenomena and associated lesions in high resolution OCT B. Discussion:Few studies have evaluated the OCTA in the evaluation of NVC, the published articles analyze the feasibility and reproducibility of this technique. Our initial analyzes suggest that scans provide better penetration and resolution of NVCs, but this requires direct comparative studies between OCTA systems used to scan the same eyes. The learning curve seemed fast for this technique. Conclusion :The evaluation of antiangiogenic treatments and the risk of graft rejection, it should be noted when interpreting OCTA scans of the anterior segment that artifacts may appear in dense scars areas in addition to motion artifacts.Future software enhancements and optimization for anterior segment acquisition may reduce these artifacts even more and improve the resolution of the image.