|
The Sense of Sight / All About the Eyes
|
|
submitted by Dr. Gary Farr - Contact the author here.
Last Updated June, 14, 2002
|
Save Money! Check out our special offers here.
|
The conjunctiva lines the lids and then bends back over the surface of the eyeball, constituting an outer covering to the forward part of this and terminating at the transparent region of the eye, the cornea. The portion that lines the lids is called the palpebral portion of the conjunctiva; the portion covering the white of the eyeball is called the bulbar conjunctiva. Between the bulbar and the palpebral conjunctiva there are two loose, redundant portions forming recesses that project back toward the equator of the globe. These recesses are called the upper and lower fornices, or conjunctival sacs; it is the looseness of the conjunctiva at these points that makes movements of lids and eyeball possible. (The ophthalmologist finds the lower conjunctival sac a useful cavity in which to place drops containing drugs. He accomplishes this by merely pulling the outer lid away from the globe. The drops are retained in the cavity long enough to act directly on the cornea and to diffuse through this into the internal structures of the eye.)
The fibrous layer, which gives the lid its mechanical stability, is made up of the thick, and relatively rigid, tarsal plates, bordering directly on the palpebral aperture, and the much thinner palpebral fascia, or sheet of connective tissue; the two together are called the septum orbitale. When the lids are closed, the whole opening of the orbit is covered by this septum. Two ligaments, the medial and lateral palpebral ligaments, attached to the orbit and to the septum orbitale, stabilize the position of the lids in relation to the globe. The medial ligament is by far the stronger. 
For a limited time you can schedule a  to talk with a licensed doctor or clinician regarding your condition. Please complete a preliminary  and schedule your consultation NOW!
Locate a health care practitioner to treat your condition.
Additional information regarding conditions of the eyes can be found here.
|
