The condition called macular degeneration involves decreased function of the macula of the retina. The effect of this condition on vision is that: there occurs a loss of the central part of the field of vision.
Macular degeneration is caused due to damage in the blood vessels that leak any fluid or blood into the macula of the retina. As a result central vision is lost as the condition worsens with time. In older people, the disease may also cause permanent blindness.
Retina is a layer of tissue at the back of the eye which is most light-sensitive. It receives the light of the image and send the signals to the brain. As a result, the image of the object is formed.
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