What is definition of conjunctiva?
Conjunctival: Pertaining to the conjunctiva, the clear moist membrane that covers the inner surfaces of the eyelids and the front of eyeball.
What is the conjunctiva of the eyes?
The conjunctiva of the eye provides protection and lubrication of the eye by the production of mucus and tears. It prevents microbial entrance into the eye and plays a role in immune surveillance. It lines the inside of the eyelids and provides a covering to the sclera.
What is conjunctiva in biology?
The conjunctiva is the mucous membrane that lines the eyelids (palpebral conjunctiva) and is reflected onto the surface of the globe (bulbar conjunctiva). The junction between the palpebral and bulbar conjunctiva is called the fornix. Ventrally, a fold in the conjunctiva covers the nictitating membrane.
What is normal conjunctiva?
Normal: In a normal patient, the sclera is white in color and the palpebral conjunctiva appears pink. Unless conjunctiva is diseased you are only visualizing sclera and palpebral vascular bed through the translucent conjunctiva.
What is Cornia?
The cornea is your eye’s clear, protective outer layer. Along with the sclera (the white of your eye), it serves as a barrier against dirt, germs, and other things that can cause damage.
What is sclera and conjunctiva?
The conjunctiva, a thin layer of tissue lining the eye and eyelids, contributes to homeostasis of the tear film, provides a layer of protection from foreign material and wards off infection. The sclera, a dense connective tissue made of collagen and elastin, encapsulates the eye, giving it structure and rigidity.
What is conjunctiva and cornea?
The conjunctiva is a thin membrane that lines the inside of your eyelids (both upper and lower) and covers the outer portion of the sclera (white part of the eye). It does not cover the cornea, which is the clear covering on the front of the eye. The area where the conjunctiva meets the cornea is called the limbus.
Where is the conjunctiva found?
The conjunctiva is a loose connective tissue that covers the surface of the eyeball (bulbar conjunctiva) and reflects back upon itself to form the inner layer of the eyelid (palpebral conjunctiva). This tissue firmly adheres to the sclera at the limbus, where it meets the cornea.
Is conjunctiva on cornea?
What Is the Conjunctiva? The conjunctiva is a thin membrane that lines the inside of your eyelids (both upper and lower) and covers the outer portion of the sclera (white part of the eye). It does not cover the cornea, which is the clear covering on the front of the eye.
What is the difference between conjunctiva and sclera?
The conjunctiva contributes to the tear film and protects the eye from foreign objects and infection. The sclera is the thick white sphere of dense connective tissue that encloses the eye and maintains its shape.
What is a pupil eye?
The pupil of the eye is the black circle in the center of the iris. This light is then focused on the retina, which is the layer of light sensitive cells at the back of the eye. When it is dark, our pupils dilate or open wider to allow more light in. Doing this maximizes our vision.
What is the white of the eyes?
Sclera: the white of your eye. Conjunctiva: a thin layer of tissue that covers the entire front of your eye, except for the cornea.
Which is the correct definition of the conjunctiva?
Conjunctiva Definition. The conjunctiva is the clear, thin membrane that covers part of the front surface of the eye and the inner surface of the eyelids.
Where does the bulbar conjunctiva stop in the eye?
Bulbar conjunctiva. This portion of the conjunctiva covers the anterior part of the sclera (the “white” of the eye). The bulbar conjunctiva stops at the junction between the sclera and cornea; it does not cover the cornea. Palpebral conjunctiva.
Is the palpebral conjunctiva part of the cornea?
The bulbar conjunctiva covers the anterior part of the sclera (the white of the eye). It does not cover the cornea. The palpebral conjunctiva covers the inner surface of the upper and lower eyelids. The bulbar and palpebral conjunctiva are both continuous, making it impossible to lose a contact lens behind your eye.
What does it mean when your conjunctiva is pale?
Conjunctival pallor. This is an unhealthy pale appearance to the palpebral conjunctiva that can be a sign of anemia. Injected conjunctiva.