External examination of eyes consists of inspection of the eyelids, surrounding tissues .Palpation of the orbital rim may also be desirable, depending on the presenting signs and symptoms. The conjunctiva and sclera can be inspected by having the individual look up, and shining a light while retracting the upper or lower eyelid. The position of the eyelids are checked for abnormalities such as ptosis or drooping of the eyelids or asymmetry between eyelid positions.
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