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Description: Animation of Age-related Macular Degeneration (AMD). AMD is a vision problem of the retina or light sensitive layer of the eye in older individuals. Yellowish deposits (drusen) form, resulting in distortion and gradual blurring of vision. In advanced cases, blind spots develop that grow larger as the disease progresses. There are two types of AMD, classified as "wet" and "dry." The most common form is the dry type. Wet AMD, as seen in the animation, occurs when blood vessels growing up from beneath the retina leak blood. Leaked blood pushes on the light receptor cells resulting in damage to the retina.

Video Caption(Video only; no audio.) Children are playing in a play lot. As the video progresses, the children are distorted and the bright colors and strong contrast in the children's clothes fade becoming less focused. In this simulation, how a person with AMD sees the world is presented graphically. As the disease progresses the area of central vision deteriorates. The gradual destruction of light sensitive cells continues until large areas are totally lost. Peripheral vision remains, but the ability to clearly see straight ahead is gradually lost.

Credit: National Eye Institute, National Institutes of Health

View Animation (15 second MPEG)
View Animation (15 second Quicktime)

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