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 Letter U and the Numeral 2 effect". Three years later, Negativland re-released this as "". It included "Crosley Bendix Discusses the U.S. Copyright Act" plus nine other tracks. The Letter U and the Numeral 2 The Letter U and the Numeral 2 is a 96-page magazine and 25-minute CD by Negativland detailing their conflict with the band U2, over Negativland's EP of the same name. It was released in 1992 as a limited edition of 4000 copies. Two months after its release, SST Records blocked its distribution with a lawsuit claiming, among other things, copyright infringement based on reproductions of press releases sent to the press