What is the retina?
The retina is a “tissue-paper” thin layer of nerve tissue, which lines the inside of the eye like the film in a camera. In the eye, light is focused onto the retina, which “takes the picture” and sends the image to the brain. The retina has many layers of cells and fibers that normally adhere together for the retina to work properly.
What is retinoschisis (pronounced “retino-SKEE-sis”)?
In Retinoschisis the retina splits into two layers that separate from each other. The outer layer of the retina usually remains attached to the inside of the eye wall. The inner layer of the retina floats inside the eye as fluid fills the space between the two layers. It is similar to what happens to multi-ply tissue paper in a sink. The layers of tissue paper may float apart from each other.
What causes retinoschisis?
Retinoschisis is caused by a weakness of the cells that normally hold the layers of the retina together. Retinoschisis is more common in people who are far-sighted. This tendency may be hereditary.
What are the symptoms of retinoschisis?
Retinoschisis usually causes no symptoms. It is usually found on a routine dilated eye exam and becomes an important issue because it resembles retinal detachment.
How is retinoschisis treated?
Retinoschisis does not usually require treatment because it rarely causes any visual symptoms or problems. However, retinal detachment may be caused by retinoschisis. Therefore, it is important to report any loss of side vision, like a curtain or shadow. These symptoms may be a sign of retinal detachment, which does require treatment to prevent blindness.
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