The upper and lower eyelids provide protection for the eye. Tears are produced by the lacrimal gland, situated in the outer portion of the upper lid. Once they have bathed the eye, they drain into the lacrimal canal, which is situated on the lower lid, on the innermost part of it. Eyelid lacerations can produce irregularities of the lid. They can prevent adequate protection of the eye. In addition, they can damage the areas responsible for either the production or drainage of tears.
Causes of Eye Lid Laceration
Eyelid lacerations are almost always the result of blunt or penetrating trauma.
Signs and Symptoms of Eye Lid Laceration
Bleeding and swelling of the eyelid occurs. The underlying eyeball or cornea may be injured, leading to blurred or absent vision. Swelling of the conjunctiva may produce chemosis, where the clear part of the eye is swollen. Injuries to the lacrimal gland may decrease the production tears, producing dry eyes and irritation or corneal ulcers. Damage to the lacrimal duct prevents the tears from draining into the nasal cavity. Tears then well up in the eye and drain onto the face.
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Medical Content Last Updated on 07/12/2008
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