DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Close-up of a drooping eyelid (ectropion) in a 90 year old female patient. The drooping here is bilateral (on both edges of the eye), caused by a loss of muscle tone in the periorbital muscles so that tears do not drain correctly and the eye constantly runs with tears.
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