PSYB51H3 Chapter Notes - Chapter 2: Emmetropia, Refractive Error, Anterior Chamber Of Eyeball
Document Summary
Psyb51h3- chapter 2: the first steps in vision from light to neural signals. Light is made up of waves when it moves around the world, and is made up of photons when it is absorbed. Wave-> an oscillation that travels through a medium by transferring energy from one particle or point to another without causing any permanent displacement of the medium. Photon-> a quantum of visible light or other form of electromagnetic radiation demonstrating both practice and wave properties. An eye can form images of the outside world, enabling animals that possess eyes to use light to recognize objects. Eye structure: cornea-> provides a window to the world because it is transparent-> most photons are transmitted though. It is transparent because it is made of highly ordered arrangements of fibers and because it contains no blood vessel or blood which absorb light.
