Is retina highly vascularized?

Is retina highly vascularized?

The retina is one of the most metabolically active tissues in the body, consuming high levels of oxygen and nutrients. A well-organized ocular vascular system adapts to meet the metabolic requirements of the retina to ensure visual function.

What is changes in retinal vascular appearance?

Observable changes in retinal vascular architecture, such as increased retinal vein caliber (decreased artery-to-vein ratio), retinal vascular tortuosity, increased prominence of the retinal arterial reflex, venous nicking, “copper” or “silver wire” appearance as well as the discovery of cholesterol, calcium or …

What causes white spots on the retina?

The white spots (called “drusen”) are deposits of metabolism of the retinal cells. The metabolism weakens as a process of aging and macular cells become damaged. The macula is the part of the retina that is responsible for central fine vision.

What is retinal vascular sheathing?

The perivascular sheathing is a collection of exudation consisting of inflammatory cells around the affected vessels. This results in appearance of a white cuff around the blood vessels. Retinal vascular sheathing is a common manifestation described with clinical entities like multiple sclerosis and Eale’s disease.

What does retinal vasculitis look like?

Symptoms. Retinal vasculitis presents as painless, decrease of visual acuity (blurry vision), visual floaters, scotomas (dark spot in vision), decreased ability to distinguish colors, and metamorphopsia (distortion of images such as linear images).

How rare is retinal vasculitis?

Even though about 1 in every 8 patients with uveitis has an associated retinal vasculitis,10 there are only a limited number of publications related to this disease and well-controlled clinical trials have not been conducted.

What is Multiple evanescent white dot syndrome?

The multiple evanescent white dot syndrome (MEWDS) is an inflammatory retinal disorder, typically observed in young patients, that is characterized by unilateral visual loss and the presence of small, punctate, yellow-white lesions that involve the outer retina.