Retina Background

Robotic Eyes

Submitted by laurenmeloche on Wed, 05/11/2022 - 15:43

Scientists are closer than ever to achieving a robotic eye that can mimic the abilities of a human eye. In some cases, this robotic eye can respond even faster to light than a human eye.

The Blood-Retinal Barrier

Submitted by abigailnprescott on Fri, 05/06/2022 - 14:30

The Blood-Retinal Barrier (BRB) functions to maintain retinal homeostasis for optimal retinal function. It is made of an inner and outer layer. The inner layer is composed of cells that nourish the cells of the retina. The outer layer contains tight junctions of cells that prevent the passage of most particles through this barrier. 

Diabetic Macular Edema (DME)

Submitted by abhowmick on Sat, 04/30/2022 - 12:34

Diabetes causes damage to the blood vessels near the retina which is referred to as diabetic retinopathy. In some cases, the damaged blood vessels leak blood into the retina and lead to swelling or edema in the macula also known as the central section of the retina.

Pneumatic Retinopexy

Submitted by abigailnprescott on Fri, 04/29/2022 - 10:19

Pneumatic retinopexy is a procedure used to fix retinal detachment, where the retina detaches from the inner wall of the eye. This is a serious condition that can lead to permanent vision loss if not addressed properly. Pneumatic retinopexy involves a gas bubble being injected into the eye to reattach the retina to the eye. 

Dancing Eyes (aka Nystagmus)

Submitted by abhowmick on Wed, 04/06/2022 - 15:25

Nystagmus (also known as dancing eyes) is a condition where the eyes have uncontrollable, fast or slow movements. Movements include horizontal, vertical, and rotary directions and may shake more in different directions.

giph

There is not a clear cause for Nystagmus but it could be related to:

-genetics

-albinism

Fetal Alcohol Syndrome and the Eyes

Submitted by amandacarlson on Thu, 02/24/2022 - 17:40

Fetal Alcohol Syndrome (FAS) is a condition that explains the changes in a child that may occur if the mother drinks a certain amount of alcohol during pregnancy. Consumption of alcohol during pregnancy can severely impact a fetus because the fetus does not have fully developed mechanisms for processing alcohol in the body as an adult, and the fetus' ability to deliver oxygen can be disrupted. Alcohol can pass through the blood of the mother into circulation in the fetus, causing impaired development of the nervous system, and vital organs such as the heart and kidneys.