Refraction

The Practice of Refraction

Wavefront refraction and correction.

Galileo Galilei, the father of experimental science, taught that to understand nature, you must measure nature. Galileo’s contemporary, Christophoro Scheiner, explored the nature of eyes as optical instruments and discovered how to measure the eye’s focusing distance simply by viewing a point of light through closely spaced pinholes in an opaque card. Two centuries later, Thomas Young used Sche...

Textbook of Refraction

Refraction of the Eye

Refraction of the Eye