Eyelid Retraction
Retraction of the eyelid is defined by a vertical change in the position of the edge of the eyelid, leading to the eyelid margin moving or retracting downwards and leading to showing of the white part of the eye (sclera), which is normally covered by the eyelid. In the upper eyelid, the margin moves up and leads to scleral show of the upper part of the eye.