Conjunctiva Of The Eye

Conjunctiva Of The Eye

Definition of conjunctivaThe conjunctiva is a thin transparent membrane that covers part of the front surface of the eye and the inner surface of the eyelids. It has two tranches:

Bulbar conjunctiva.

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This part of the conjunctiva covers the front part of the sclera, the "white" of the eye. The bulbar conjunctiva terminates at the junction between the sclera and the cornea; it does not cover the cornea.lid conjunctiva.

This part covers the inner surface of the upper and lower eyelids.The bulbar and palpebral conjunctiva are continuous (see figure). This feature prevents you from losing your contact lens (or whatever) behind your eye.conjunctival functionThe basic functions of the conjunctiva are:

• Keep the front part of the eye moist and lubricated.
• Keep the inner surface of the eyelids moist and moisturized so they open and close easily without rubbing or irritating the eyes.
• Protect your eyes from dust, pollution and infectious microorganisms.

The conjunctiva has many small blood vessels that supply nutrients to the eye and eyelids. It also contains special cells that secrete a component of the tear film to help prevent dry eye syndrome.conjunctival problemsA number of conditions can affect the conjunctiva. Some of the more common conjunctival problems are:conjunctivitis.Also called conjunctivitis, this is conjunctivitis. It can have several causes.

Pale conjunctiva.

This is an unhealthy, pale appearance of the lid conjunctiva that may be a sign of anemia.Injected conjunctiva.It is redness of the eye caused by dilation of the conjunctival blood vessels. It can have many causes.conjunctival cyst.This is a thin-walled, transparent sac in the conjunctiva that contains a clear fluid. It looks like a small transparent bubble on the skin.A cyst or conjunctival sac can occur as a result of an eye infection, inflammation, or another cause.conjunctival hemorrhage.

This is bleeding from a small blood vessel in the front of the eye, above the sclera. As the leaking blood spreads under the conjunctiva, the whites of the eye appear bright red. More specifically known as subconjunctival hemorrhage, this type of red eye is harmless and usually goes away on its own within a few weeks.conjunctival lymphoma.

This is a tumor on the front of the eye that usually appears as a salmon pink "fleshy" patch. Conjunctival lymphomas are usually hidden behind the eyelids and are painless; As such, they can be present for a long time before they're discovered, especially in people who don't get routine comprehensive eye exams. If you have a growth on your eye that looks like this description of conjunctival lymphoma, see an eye doctor right away who can evaluate it and possibly do a biopsy to determine appropriate treatment.hemangioma of the conjunctiva.

This is a benign (noncancerous) tumor of small blood vessels that forms a red, blood-filled sac in the conjunctiva. Large conjunctival hemangiomas can be surgically removed if they cause irritation.conjunctival birthmark.This is a common and benign growth of the bulbar conjunctiva. In fact, conjunctival birthmarks (plural of nevus) are the most common growth found on the surface of the eye.

A conjunctival birthmark can range in color from yellow to dark brown and may darken or lighten over time. In most cases, a conjunctival birthmark doesn't need treatment, but if the birthmark gets larger, it can be surgically removed.conjunctival melanoma.This is a raised, dark, or relatively prominent carcinoid growth in the bulbar conjunctiva. Italian-chicken-and-penne.

Conjunctival melanomas are rare but potentially fatal.Conjunctival melanoma cancer cells can infiltrate the eyeball and spread to the lungs, liver, brain, and bones via the lymphatic system or bloodstreamto the lungs, liver, brain and bones.

Conjunctiva Of The Eye. VIDEO