The conjunctiva is a thin, transparent, mucous membrane that covers the anterior (front) part of the eye and the inside of the eyelids. It plays a crucial role in maintaining eye health and function.
Key characteristics:
- Location: The conjunctiva covers:
- The sclera (white part of the eye)
- The inside of the upper and lower eyelids (palpebral conjunctiva)
- The fornices (areas where the eyelids meet the eye)
- Function: The conjunctiva:
- Produces mucus to lubricate the eye and facilitate smooth movement
- Helps protect the eye from infection and foreign particles
- Aids in maintaining the health of the cornea
- Structure: The conjunctiva consists of:
- Epithelial cells
- Substantia propria (a layer of connective tissue)
- Importance: The conjunctiva is essential for:
- Maintaining eye comfort and moisture
- Preventing infection and inflammation
- Supporting the overall health of the eye
Common conditions: Conjunctivitis (pink eye), allergies, and dry eye syndrome can affect the conjunctiva, causing symptoms such as redness, itching, discharge, and discomfort.
