The retina is a very thin layer of tissue that lines the inner part of the eye.  It is responsible for capturing the light rays that enter the eye.  Much like the film's role in photography.  These light impulses are then sent to the brain for processing, via the optic nerve.   Copyright St. Luke's Cataract & Laser Institute
	The macula is located roughly in the center of the retina, temporal to the optic nerve. It is a small and highly sensitive part of the retina responsible for detailed central vision. The fovea is the very center of the macula. The macula allows us to appreciate detail and perform tasks that require central vision such reading. Copyright St. Luke's Cataract & Laser Institute
	The aqueous is the thin, watery fluid that fills the space between the cornea and the iris (anterior chamber). It is continually produced by the ciliary body, the part of the eye that lies just behind the iris. This fluid nourishes the cornea and the lens and gives the front of the eye its form and shape. Copyright St. Luke's Cataract & Laser Institute

I have a condition named Epiretinal Membrane (Macular Pucker)

Here's an overview of what Epiretinal Membrane Pucker is.

Overview of Vitroctomy surgery

Animation of actual surgery