Light enters the eye through the cornea. From the cornea, the light passes through the pupil. From there, it then hits the lens. Next, light passes through the vitreous humor. Finally, the light reaches the retina. Light bounces off an object and into your eye. It first enters the cornea, where the light is refracted slightly. Small Steps for Big Vision is supported by the Health Resources and Services Administration (HRSA) of the U.S. Department of Health and Human Services (HHS). Your capacity to see stems from complex teamwork between your eyes and brain. The vision process starts when light rays from the objects you see. When light hits the retina (a light-sensitive layer of tissue at the back of the eye), special cells called photoreceptors turn the light into. Step 1: Light enters the eye through the cornea If you suspect you have blurry vision or an eye condition, contact an eye doctor near.