Retina what is

The macula is made up of densely packed light-sensitive cells called cones and rods. Cones are responsible for color vision, and rods enable you to see shades of gray. Retinal diseases vary widely, but most of them cause visual symptoms.

Retinal diseases can affect any part of your retina, a thin layer of tissue on the inside back wall of your eye. The retina contains millions of light-sensitive cells rods and cones and other nerve cells that receive and organize visual information. Your retina sends this information to your brain through your optic nerve, enabling you to see. Treatment is available for some retinal diseases.

Depending on your condition, treatment goals may be to stop or slow the disease and preserve, improve or restore your vision. Untreated, some retinal diseases can cause severe vision loss or blindness. It's important to pay attention to any changes in your vision and find care quickly. Seek immediate medical attention if you suddenly have floaters, flashes or reduced vision. These are warning signs of potentially serious retinal disease. Retinal diseases care at Mayo Clinic.

Mayo Clinic does not endorse companies or products. Goldman-Cecil Medicine. Philadelphia, PA: Elsevier; chap Schubert HD. Structure of the neural retina. Philadelphia, PA: Elsevier; chap 6. Reh TA. The development of the retina. It is located near the optic nerve. The purpose of the retina is to receive light that the lens has focused, convert the light into neural signals, and send these signals on to the brain for visual recognition.

The retina processes light through a layer of photoreceptor cells. These are essentially light-sensitive cells, responsible for detecting qualities such as color and light-intensity. The retina processes the information gathered by the photoreceptor cells and sends this information to the brain via the optic nerve.

Basically, the retina processes a picture from the focused light, and the brain is left to decide what the picture is. Conditions such as retinal detachment , where the retina is abnormally detached from its usual position, can prevent the retina from receiving or processing light.

This prevents the brain from receiving this information, thus leading to blindness. The central retinal artery is a blood vessel inside the eye. It provides essential nutrients to the retina. The retina lines at the back of the eye….

Short in length, the central retinal vein courses through the optic nerve.