Choroid Choroid The choroid, also known as the choroidea or choroid coat, is the vascular layer of the eye, containing connective tissues, and lying between the retina and the sclera. The human choroid is thickest at the far extreme rear of the eye (at 0.2 mm), while in the outlying areas it narrows to 0.1 mm. The choroid provides oxygen and nourishment to the outer layers of the retina. Along with the ciliary body and iris, the choroid forms the uveal tract. The structure of the choroid is generally divided into four layers (classified in order of furthest away from the
The University of Illinois Eye and Ear Infirmary Sciences. LIERI also houses patient care facilities in the Edwin and Lois Deicke Eye Center. Of the 31 Chicago ophthalmologists as Super Doctors, 11 were based at the Illinois Eye and Ear Infirmary. The Illinois Eye and Ear Infirmary is currently chaired by Dr. Mark Rosenblatt, a cornea specialist, with the former chair, Dr. Dimitri Azar, serving as dean of the College of Medicine at the University of Illinois at Chicago. The Infirmary houses some of the world's most renowned ophthalmology faculty: 57 full-time and part-time ophthalmologists, as well as 18 ophthalmology residents, treat more than 60,000 patients and performs