What Is Macular Edema? Macular edema is swelling or thickening of the eye's macula, the part of your eye responsible for detailed, central vision. The macula is a very small area at the center of the retinaâa thin layer of light-sensitive tissue that lines the back of the eye.
What is perception? The process by which individuals select, organize, and interpret the input from their senses (vision, hearing, touch, smell, and taste) to give meaning and order to their environment. Through perception, people try to make sense of their environment and the objects.
âgross rating pointâ in Business English. gross rating pointnoun [ C ] âº a measurement of how many people see an advertisement over a particular period of time. A gross rating point is a measurement of how much media exposure it takes to reach a certain number of households through a given media.