Refraction and How to Refract is a comprehensive guidebook on the science of optics and the art of refracting, written by James Thorington and originally published in 1904. The book covers a range of topics related to the correction of vision, including the principles of light and vision, the anatomy of the eye, and the various methods of measuring and correcting refractive errors. The book also includes detailed sections on retinoscopy, the fitting of spectacles and eyeglasses, and other practical aspects of refracting. Thorington's clear and concise writing style, combined with numerous illustrations and diagrams, make this book an invaluable resource for anyone interested in the science of optics or the art of vision correction. Despite being over a century old, Refraction and How to Refract remains a valuable reference for optometrists, ophthalmologists, and anyone else involved in the field of vision care. Its timeless insights and practical advice continue to be relevant to modern practitioners and students alike.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.