What is the difference between bulbar and palpebral conjunctiva?
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.
How do you assess bulbar and palpebral conjunctiva?
The superior and inferior portions of the bulbar conjunctiva may be assessed by gently holding the patient’s eyelid open while the patient looks up or down. The palpebral conjunctiva and fornices may be more difficult to assess but may be assessed using a small cotton swab to invert the lid.
What is appearance of bulbar conjunctiva?
It is important to appreciate the differences in normal appearance across the conjunctival sac. The bulbar conjunctiva is loosely bound to the globe and it appears mainly white due to the color of the sclera beneath. Blood-filled capillaries impart a salmon pink color.
What is palpebral conjunctivitis?
Conjunctivitis, which is defined as inflammation of the bulbar and/or palpebral conjunctiva (the transparent lubricating mucous membrane that covers both the surface of the eye and lining of the undersurface of the eyelids), has many etiologies, including infection from various bacteria, fungi, and viruses, as well as …
How do you inspect bulbar conjunctiva?
The conjunctiva lining the inner eyelid of the lower lid may be inspected by gently pulling down the lid with a finger. The conjunctiva lining the upper lid can only be observed by everting the upper lid as shown in Figure 114.1. The lacrimal apparatus is checked by observing for excess dryness or tearing.
What is the term for the area in between the palpebral and bulbar conjunctiva?
The palpebral conjunctiva is again subdivided into marginal conjunctiva, tarsal conjunctiva, and orbital conjunctiva. The marginal conjunctiva is a transitional zone between the skin of the eyelid and the conjunctiva proper.
How do you assess palpebral conjunctiva?
Method Of Exam Gently pull the lower eyelid downward and ask the patient to look upward. In doing so, you can better visualize the sclera and palpebral conjunctivae. Note the translucency and vascular pattern of both the scleral and palpebral conjunctivae and the color of the sclera.
What is bulbar conjunctival injection?
Conjunctival injection is a common condition that refers to the inflammation and dilation of blood vessels of the eye that supply the conjunctiva.
Where is the palpebral conjunctiva?
eyelids
Palpebral conjunctiva: The part of the conjunctiva, a clear membrane, that coats the inside of the eyelids. The palpebral conjunctiva is as opposed to the ocular (or bulbar) conjunctiva, the part of the conjunctiva that covers the outer surface of the eye.
How do you test for palpebral conjunctiva?
What is the difference between conjunctiva and sclera?
The conjunctiva is the membrane that lines the eyelid and loops back to cover the sclera (the tough white fiber layer covering the eye), right up to the edge of the cornea (the clear layer in front of the iris and pupil—see Structure and Function of the Eyes.