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Conjunctiva

A membrane that lines the inner surface of the eyelid and also covers the front part of the eye. Conjunctivitis is inflammation of the conjunctiva.

PubMed Health Glossary
(Source: NIH - National Cancer Institute)

Terms to know

Cornea
The transparent part of the eye that covers the iris and the pupil and allows light to enter the inside.
Eye
Eyes are the organs of vision. They detect light and convert it.
Eyelid
An eyelid is a thin fold of skin that covers and protects the eye.
Inflammation
Redness, swelling, pain, and/or a feeling of heat in an area of the body. This is a protective reaction to injury, disease, or irritation of the tissues.
Iris
The colored tissue at the front of the eye that contains the pupil in the center. The iris helps control the size of the pupil to let more or less light into the eye.
Lens in the Eye
A clear disk that focuses light, as in a camera or microscope. In the eye, the lens is a clear, curved structure at the front of the eye behind the pupil. It focuses light rays that enter the eye through the pupil, making an image on the retina (light-sensitive layers of nerve tissue at the back of the eye).
Vitreous Humor (Vitreous Body)
The clear jelly-like substance that fills the inside of the eyeball. As a person ages, the vitreous humor becomes more liquid.

Related conditions

Terms to know

Cornea
The transparent part of the eye that covers the iris and the pupil and allows light to enter the inside....
Eye
Eyes are the organs of vision. They detect light and convert it....
Eyelid
An eyelid is a thin fold of skin that covers and protects the eye....
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