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VOLUME 18 , ISSUE 2 ( April-June, 2024 ) > List of Articles

ORIGINAL RESEARCH

Comparison of Ocular Blood Flow in Glaucomatous Eyes and Nonglaucomatous Eyes at a Tertiary Hospital in South India: A Prospective Case-control Study

Meera Alias Devasena Murugesan, Praveena Venkat, Bhavya Basetti

Keywords : Color Doppler imaging, Central retinal artery, End-diastolic volume, Pulsatility index, Resistivity index, Short posterior ciliary artery

Citation Information : Murugesan MA, Venkat P, Basetti B. Comparison of Ocular Blood Flow in Glaucomatous Eyes and Nonglaucomatous Eyes at a Tertiary Hospital in South India: A Prospective Case-control Study. J Curr Glaucoma Pract 2024; 18 (2):45-50.

DOI: 10.5005/jp-journals-10078-1428

License: CC BY-NC 4.0

Published Online: 10-07-2024

Copyright Statement:  Copyright © 2024; The Author(s).


Abstract

Aim: To compare the ocular blood flow in glaucomatous eyes and normal healthy eyes. This study compares open-angle glaucoma patients to healthy adults by measuring various parameters in the ophthalmic artery (OA), central retinal artery (CRA), and short posterior ciliary artery (SPCA). Materials and methods: A total of 50 glaucomatous eyes and 50 normal eyes were included in a prospective case-control study over 1 year. The color Doppler imaging (CDI) was conducted using a noninvasive linear multifrequency probe with a frequency range of 5–9 MHz. OA, CRA, and SPCA were measured for peak systolic velocity (PSV), end-diastolic volume (EDV), pulsatility index (PI), and resistivity index (RI). Results: When compared with controls, PSV was decreased in all three vessels, with the results being remarkable only in CRA. The EDV also showed a remarkable decrease in all three vessels. Additionally, all three vessels showed significant increases in PI and RI except OA, p-value < 0.05. Conclusion: Blood velocity is decreased, and resistive indices are increased in glaucomatous eyes compared with normal eyes. Variations in ocular blood flow could be a cause or consequence of glaucomatous optic neuropathy and are an important predictor of disease progression.

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