The interaction between the eye and light emitted or reflected by an object allows sight to occur.
How Can Our Eyes "See" Colors?
- Light waves that have been emitted (released) or reflected by an object, enter the eye and first pass through the protective transparent layer called the cornea where they are refracted.
- The light rays are then refracted again as they pass through the transparent lens (convex).
- The lens focuses the light waves on the retina, located on the back of the inside of the eye.
- The retina is composed of tiny light sensitive nerves that transfer the energy of the light waves to nerve impulses transmitted through the optic nerve to the brain for interpretation as sight.
Video Guide:
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Topic Tips
- Our eyes have special tissues some of which are the cornea, convex lens, retina, and optic nerve that allow us to perceive different wavelengths of visible light.