The retina is the light sensitive tissue located in the back of the eye. It records the images we see and sends them via the optic nerve from the eye to the brain. The retina instantly converts light images into electrical impulses through a chemical reaction. The retina then sends these impulses or signal, to the brain, where we interpret what we see, process the visual information, and relate what we see to the rest of our environment. Having a healthy retina is fundamental for a clear vision.

The eyes’ principal function, as the organs of vision, is to take an image and transform it into electric impulses and subsequently transfer them to the brain -a superior organ- in order to be interpreted. The ability to let light pass through and the fact that it’s a hollow organ with transparent structures (the lens, the cornea and the intraocular fluids that act as the aqueous and vitreous humors), make it unique. These transparencies of its structure make it the only bodily organ of which its interior we can contemplate and approach directly.