Human eye layer, known as the fibrous tunic, is composed of the cornea and sclera. The middle layer, known as the vascular tunic or uvea, consists of the choroid, ciliary body, pigmented epithelium and iris. The innermost is the retina, which gets its oxygenation from the blood vessels of the choroid (posteriorly) as well as the retinal vessels (anteriorly). The spaces of the eye are filled with the aqueous humour anteriorly, between the cornea and lens, and the vitreous body, a jelly-like substance, behind the lens, filling the entire posterior cavity. The aqueous humour is a clear watery fluid that is contained
The University of Illinois Eye and Ear Infirmary over 3,000 eye operations each year. Fellowships in ophthalmology span the following subspecialties: Cornea, Glaucoma, Neuro-ophthalmology, Oculoplastics, Pediatric Ophthalmology and Strabismus, and Vitreoretinal Disease. Research fellowships in artificial Cornea Research, Cornea Neurobiology & Ocular Surface Disease, and Oculoplastic pre-residency are also available. The Otolaryngology Department, offers services in six subspecialties - Facial Plastic and Reconstructive Surgery, Speech and Voice Care, Sinus & Nasal Allergy, Oncology and Neurology, Cancer of the Head and Neck, and General Otolaryngology - treated nearly 17,000 patients in 2008, the most recent year for which statistics are available, making it one of the busiest programs in