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Choroid
The choroid is the layer of blood vessels and connective tissue between the white of the eye and retina (at the back of the eye). It is part of the uvea and supplies nutrients to the inner parts of the eye. Inflammation of the choroid is called choroiditis .
Retina
The retina is the light-sensitive layer of tissue at the back of the eyeball. Images that come through the eye's lens are focused on the retina. Th...
Uvea
The uvea is the middle layer of the eye. It lies beneath the white part of the eye (the sclera). It is made of the iris, ciliary body, and choroid....
Choroiditis
Uveitis is swelling and irritation of the uvea. The uvea is the middle layer of the eye. The uvea provides most of the blood supply to the retina....
References
Dorland's Online Medical Dictionary. Available at: www.dorlands.com//def.jsp?id=100020904. Accessed June 3, 2015.
Yanoff M, Cameron JD. Diseases of the visual system. Goldman L, Schafer AI, eds. Goldman-Cecil Medicine . 25th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 423.
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Eye - illustration
The eye is the organ of sight, a nearly spherical hollow globe filled with fluids (humors). The outer layer or tunic (sclera, or white, and cornea) is fibrous and protective. The middle tunic layer (choroid, ciliary body and the iris) is vascular. The innermost layer (the retina) is nervous or sensory. The fluids in the eye are divided by the lens into the vitreous humor (behind the lens) and the aqueous humor (in front of the lens). The lens itself is flexible and suspended by ligaments which allow it to change shape to focus light on the retina, which is composed of sensory neurons.
Eye
illustration
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Choroid of the eye - illustration
The choroid is the middle layer of the eye that contains blood vessels and connective tissue that supplies nutrients to the inner portion of the eye.
Choroid of the eye
illustration
-
Eye - illustration
The eye is the organ of sight, a nearly spherical hollow globe filled with fluids (humors). The outer layer or tunic (sclera, or white, and cornea) is fibrous and protective. The middle tunic layer (choroid, ciliary body and the iris) is vascular. The innermost layer (the retina) is nervous or sensory. The fluids in the eye are divided by the lens into the vitreous humor (behind the lens) and the aqueous humor (in front of the lens). The lens itself is flexible and suspended by ligaments which allow it to change shape to focus light on the retina, which is composed of sensory neurons.
Eye
illustration
-
Choroid of the eye - illustration
The choroid is the middle layer of the eye that contains blood vessels and connective tissue that supplies nutrients to the inner portion of the eye.
Choroid of the eye
illustration
Review Date: 6/1/2015
Reviewed By: Daniel Kantor, MD, Kantor Neurology, Coconut Creek, FL and immediate past president of the Florida Society of Neurology (FSN). Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
