3.1 Explain the nature of light as electromagnetic energy and the relation of wavelength to perception.
3.2 Describe the anatomy of the eye and how it makes vision possible.
3.3 Explain how the retinae transduce light energy into a neural signal.
3.4 Examine how the visual system adapts to the dark and then adapts again to the light.
3.5 Describe what retinal ganglion cells do and how receptive fields are constructed.
3.6 Examine the nature of refractive errors and how they affect the ability of the eye to see.
3.7 Describe how visual prostheses can restore visual function to blind individuals.