The retina, a thin layer of light-sensitive nerve tissue, lines the inner surface of the eye. Light is reflected into the eye and it passes through the cornea which is focused by the lens and retina. The function of this layer of the eye is to convert light into a visual signal that is transmitted to the brain and permits vision. If the retina is damaged, eyeglasses cannot restore a person’s vision.

Essentially, the retina converts the light focused on it by the eye’s lens into a signal that the brain interprets as a visual image. The retina aids in our ability to discern between different levels of light and shadow and recognize colors. This implies that we are capable of carrying out all of our essential daily tasks, such as reading and driving. Human vision is primarily based on the retina and the optic nerve. Together, these two transmit information from the retina’s photoreceptor cells to the brain via the optic nerve in the rear of the eye. Then, in order to comprehend things in a vision, we rely on the brain to notify us of the image’s true nature.