Retinal Vessel Analyzer Measurements of the Effect of Panretinal Photocoagulation on the Retinal Arteriolar Diameter in Diabetic Retinopathy

Abstract

Panretinal photocoagulation has a vasoconstrictive effect on retinal arterioles in patients with severe nonproliferative or proliferative diabetic retinopathy. These results are consistent with an autoregulatory response of the retinal circulation to increased inner retinal oxygen tension after PRP. The retinal vessel analyzer is a fast, accurate, noninvasive, online measuring system for the study of the retinal vascular response to PRP in patients with diabetic retinopathy.

Vitrectomy and Panretinal Photocoagulation Reduces the Occurrence of Neovascular Glaucoma in Central Retinal Vein Occlusion With Vitreous Hemorrhage

“…Complete PRP is the standard of care to treat NVG in ischemic CRVO and it can also decrease oxygen consumption and increase oxygen penetration of the retinal tissue. 34,35 Both VT and PRP are critical in reducing the ischemic status of the retina in CRVO and they could theoretically further reduce the occurrence of NVG. In this study, it has been proven that VT with complete PRP does improve vision and reduce the incidence of NVG.…”

Reliability of vessel diameter measurements with a retinal oximeter

“…Increased diameter may occur in retinopathy of prematurity [17,18] and is decreased with laser treatment [19]. Laser treatment for diabetic retinopathy [20][21][22][23][24][25] or branch retinal vein occlusion [26] has also been found to decrease vessel diameters. Retinal vessel diameters may be of importance in evaluation of systemic diseases as well as eye diseases.…”

Racial Differences in Retinal Vessel Geometric Characteristics: A Multiethnic Study in Healthy Asians

“…There is increasing evidence that changes in retinal vasculature (e.g., retinal arteriolar narrowing and retinal venular widening) are early subclinical markers for major cardiovascular diseases (CVDs) (e.g., stroke) and their risk factors (e.g., hypertension and diabetes). [1][2][3][4][5][6][7][8][9][10][11] Such retinal vascular changes have also been shown to be linked with major eye diseases, including diabetic retinopathy, 5,12,13 glaucoma, 14 age-related macular degeneration, 15 and retinal vein occlusion. 16 The characteristics and patterns of retinal vessels have been extensively described in several large epidemiologic studies.…”