1.2 Eye Anatomy Part Function Cornea A thin, transparent and curved membrane that covers the front part of the eye, protecting the inside of the eye from dust and other matter. It also helps to focus the light onto the retina. Click to see full answer. Similarly, it is asked, which parts of the eye are most important when it comes to focusing light?The cornea and the retina are the most important parts of the eye when it comes to focusing light so we can see a perfect image.Secondly, what parts of the eye does light travel through? Light rays enter the eye through the cornea, the clear front “window” of the eye. The cornea’s refractive power bends the light rays in such a way that they pass freely through the pupil the opening in the center of the iris through which light enters the eye. The iris works like a shutter in a camera. Similarly, what is the name of the clear membrane that covers and protects the cornea? conjunctiva Are receptors of the eye that are responsible for low light vision?These photoreceptors, called rods and cones, have special proteins embedded within them. The rods have a light-sensitive protein responsible for vision in low light conditions called a rhodopsin. Once the rhodopsin and photopsin sense incoming particles of light, they change shape.