Why We See Like Human Beings: Published to Protect and Preserve the Only Pair of Eyes We Will Ever Have |
Contents
VISIONLIFES GREATEST TREASURE | 3 |
THE FIRST EYES ON EARTH | 17 |
EYES TAKE AN AIRING | 27 |
10 other sections not shown
Common terms and phrases
absorb amount of light amphibians angle astigmatic eye astigmatism automobile blue body brain cells ciliary muscles color blind color perception compound eye Cornea corrected creatures dark defective vision developed discovered distance enable Euglena example eye defects eye glasses eye strain eyeball eyes examined eyesight fact faulty vision fish focus focusing foot-candles form of eye forms of animal green helping lenses human eye illumination important insects interesting invented learned light rays lines living look means millions motion move Nature Nature's near-sightedness nerve normal eye objects ocelli octaves ommatidia ophthalmic glass optic nerve organ of sight pair percent picture pigment primary colors pupil Questions and Topics radio rays of light reading reflected retina rods and cones science of optics scientists shape simple eyes snail Snellen test card spectacles sunlight telescope things tion Topics for Discussion ultra-violet vibrations VITREOUS HUMOR wave lengths yellow spot