The retina is the nerve tissue that lines the inner wall of the back half of the eye, which receives the images focused on it. You might compare it to the film in a camera. The macula is the central portion of the retina which is essential for sharp vision. The vitreous is a transparent jelly located behind the lens and in the front of the retina.
Many diseases involve the retina and cause or contribute to visual loss. Retinal abnormalities may be associated with nearsightedness, injury, diabetes, and aging. In some patients, holes or rips in the retina may lead to retinal detachment.
With careful history taking, detailed examination of the eye and special tests, the cause for the problem can be determined. Treatment for diseases of the retina and vitreous may include drops or pills, laser or freeze treatments in the office, or more extensive surgery in the hospital operating room. Even for major surgery, hospital stays are usually only one or two days.
Retina: the nerve layer that lines the back of the eye. The retina senses light and creates impulses that are sent through the optic nerve to the brain. An eye is like a camera. The lens in the front of the eye focuses light onto the retina. You can think of the retina as the film that lines the back of a camera.
Macula: a small area in the retina that contains special light-sensitive cells. The macula allows us to see fine details clearly.