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. 

Can Ultrasound Technology Help us See?

Submitted by amandacarlson on Thu, 04/21/2022 - 12:46

It has been projected that by 2029, the majority of age related eye diseases will be retinal degenerative diseases, which causes progressive vision loss. Technology could be the answer- A new research study at USC is looking into the use of Ultrasound to stimulate retinas of the blind. An ultrasound uses sound waves in order to produce an image. It is often used to produce an image of a developing baby inside the mother. This technology can be modified to stimulate vision.

The Visual Cortex

Submitted by abigailnprescott on Fri, 04/15/2022 - 10:51

The visual cortex is the part of the brain that receives and processes visual information from the retinas. It is located in the occipital lobe of the cerebral cortex, which is on the back of the head. There are five regions of the visual cortex ,V1-V5. V1 is the primary visual cortex, which is the first area of the visual cortex that receives visual information. It is also the area of the visual cortex that we know the most about.

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.


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