Jing Wang
Good vision depends on how well light rays are absorbed on the retina through the cornea and lens. To concentrate on the eye, light rays must bend (refract). The retina is the nerve layer sensitive to light that forms the back of the eye. It produces impulses from the rays of light that are sent to the brain by the optic nerve. Vision issues brought about by a cornea that isn't totally framed are refractive mistakes. The straightforward piece of the front of the eye is the cornea. It twists and carries light waves to focus. Refractive mistakes permit an article's light not to be focused on the retina. An obscured picture is brought about by this. In any case sound eyes, refractive errors may happen.