The 'conjunctiva' is a membrane that covers the
sclera (white part of the
eye) and lines the inside of the
eyelids.
Function
It helps lubricate the
eye by producing
mucus and
tears, although a smaller volume of
tears than the
lacrimal gland.
[1]
==
Histology==
The conjunctiva is typically divided into three parts:
# 'Palpebral or tarsal conjunctiva': The conjunctiva lining the eyelids.
# 'Fornix conjunctiva': The conjunctiva where the inner part of the eyelids and the eyeball meet, the palpebral conjunctiva is reflected at the superior fornix and the inferior fornix to become the bulbar conjunctiva.
# 'Bulbar or ocular conjunctiva': The conjunctiva covering the eyeball, over the
sclera. This region of the conjunctiva is bound tightly and moves with the eyeball movements.
Diseases and disorders
Main articles: List of eye diseases and disorders
Disorders of the conjunctiva and
cornea are a common source of eye complaints.
The surface of the eye is exposed to various external influences and is especially suspectible to
trauma,
infections, and
allergic reactions.
Degeneration and
dystrophia are less common causes of problems.
The conjunctiva is best known because of its
inflamed state,
conjunctivitis (more commonly known as pinkeye).
Conjunctival irritation is one of the adverse health effects that can take place after overexposure to VOCs (
Volatile organic compounds).
See also
★
Pinguecula
★
Pterygium
Additional images
References
1. London Place Eye Center (2003). Conjunctivitis. Retrieved July 25, 2004.
External links
★ Medicinenet.com (1999).
Conjunctiva. Retrieved July 25, 2004.
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