The eyelids protect the eye from environment, injury and light. They also maintain a smooth corneal surface by spreading tears evenly over the eye during blinking.
The edge of the eyelid is called eyelid margin. The eyelashes are located on the anterior edge of the lid margin.Opening of the meibomian gland are present on the posterior margin of the eyelids.
The palpebral fissure is the space between upper and lower eyelid margins when the eyelids are open. The place where the upper and lower eyelids meet together is called canthus. The opening to the tear drainage system are called lacrimal puncta and are located on the eyelid margin near the medial canthus.
The upper eyelid crease is a horizontal line that is present on the upper eyelid.
Saturday, 28 January 2017
Eyelid
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