Chapter 7 Uvea


The internal vascular layers of the eye—the iris and ciliary body in the anterior segment and the choroid of the posterior segment—make up the uvea. These layers are composed of dense networks of blood vessels of various sizes and have varying degrees of pigmentation. Consequently, the pathology that affects these layers reflects their vascular basis—inflammation, hematogenous spread of infectious agents, and neoplasms. The most significant lesions of the uvea are inflammatory. Various congenital uveal abnormalities, often hereditary, such as colobomas and persistent pupillary membranes, pigmentation variations, uveal cysts, and tumors, are also frequently seen in small animal practice.


Figure 7-17 Same cat as in Figure 7-16 at a later date. The PPMs have decreased.

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Jul 31, 2016 | Posted by in INTERNAL MEDICINE | Comments Off on Uvea

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