PURPOSE To evaluate ocular blood flow velocity indices in untreated primary open-angle glaucoma (POAG) and normal pressure glaucoma (NPG). METHODS Twenty-five untreated patients with NPG, 23 untreated patients with POAG, and 26 age-matched normal control subjects underwent color Doppler imaging for the measurement of blood flow velocity in the central retinal and ophthalmic arteries. Neither ...

The arterial blood supply to the eye is provided by the ophthalmic artery, one of the branches of the internal carotid artery. The branches of the ophthalmic artery which meet the metabolic needs of the globe are central retinal artery, short and long posterior ciliaries, anterior ciliaries. The central retinal artery enters the globe through the optic nerve and supplies blood to the inner laye...

BACKGROUND There are some cases that reported central retinal vein occlusion accompanied by ciliary artery occlusion, however, combined branch retinal artery and vein occlusion is a rare condition that has been infrequently reported. We describe in this report one case of retinal vein occlusion and branch retinal artery occlusion occurring simultaneously. CASE PRESENTATION A 50 year-old woman...

OBJECTIVE To analyze the flow of retrobulbar vessels in retinoblastoma by color Doppler imaging. METHODS A prospective study of monocular retinoblastoma treated by enucleation between 2010 and 2014. The examination comprised fundoscopy, magnetic resonance imaging, ultrasonography and color Doppler imaging. The peak blood velocities in the central retinal artery and central retinal vein of tum...

results this review explores the relationship between metabolic syndrome, including all its components, and various ocular conditions such as retinopathy, central retinal artery occlusion, cataract and elevated intraocular pressure. context metabolic syndrome (metabolic syndrome x) is a prevalent cluster of risk factors that include high bmi, hypertension, insulin resistance and dyslipidemia. i...

We report a case of a patient with an impending central retinal vein occlusion (CRVO) with cilioretinal artery obstruction, which may help to understand the nature of the retinal hemodynamic changes associated with CRVO which shows direct evidence of arterial vasospasm, suggesting an increased contractility of retinal arteries. The clinical course, with initial retinal whitening along a ciliore...

Optical coherence tomography angiography (OCTA) is a new, noninvasive technology that enables detailed evaluation of flow in the retinal and choroidal vasculature. The authors believe this to be the first report to describe the optical coherence tomography angiography findings associated with combined central retinal artery occlusion (CRAO) and central retinal vein occlusion (CRVO).

Figure I The retinal venous pattern is shown with the superior hemiretinal vein appearing to enter into the choroid adjacent to the optic nerve (arrow). The inferior hemiretinal vein enters into the central optic disc with the arteries. vein followed the usual path and entered into the central optic disc with the artery. Colour Doppler imaging'2 was used to detect the blood velocity signals fro...

purpose: to evaluate the histopathologic features of optic neurotomy with microvitreoretinal (mvr) blade and excimer laser in cadaver eyes. method: optic neurotomy was performed in 11 cadaver eyes using 20-gauge mvr blade and in three cadaver eyes with pulsed xenon chloride (xecl) excimer laser (308 nm) via monofile light-conducting fiber with a core diameter of 200 microns. after tissue proces...