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 the country. Through generous donations, the Cless Family Ophthalmology Training and Simulation Center was also established recently at the Illinois Eye and Ear Infirmary. David J Apple: responsible for the Miyake-Apple technique. This method of sectioning the cadaver eye was initially developed by Kansatu Miyake and refined by David Apple. The eye is dissected posterior to the posterior lens capsule and the anterior segment is mounted above a camera which allows observation of the IOL in-situ in the capsule from a posterior view: thus as though looking out on the world through the lens and cornea. Using this technique, Apple