Macular edema Macular edema Macular edema occurs when fluid and protein deposits collect on or under the macula of the eye (a yellow central area of the retina) and causes it to thicken and swell (edema). The swelling may distort a person's central vision, because the macula holds tightly packed cones that provide sharp, clear, central vision to enable a person to see detail, form, and color that is directly in the centre of the field of view. The causes of macular edema are numerous and different causes may be inter-related. Cystoid macular edema (CME) involves fluid accumulation in the outer plexiform
Tissue bank and tissue are acceptable organs for donation. A Willed Body Donation program is a program that allows people to donate their bodies after death. Most U.S. tissue bank companies get their supply of cadaver tissue through Willed Body Donation programs run by the tissue bank itself. These programs then charge their customers (mainly medical instrument companies) for services associated with preparation of the cadaver tissue ("e.g." transportation, refrigeration, and recovery) rather than charging money for the donated tissue itself, though it is not illegal to do so for non-transplant and or research organizations per the Uniform Anatomical Gift Act as