This Original book edition contains a Special Report on the wordwide known Method of Vision Training (Power Vision System) with physiological explanations and suggestions on how to prevent and reverse nearsightedness in a natural way. Based on the last 50 years of clinical study in the field, not available at Bates early 1900.

William Horatio Bates (1860-1931) first published his treatise, The Cure of Imperfect Sight by Treatment Without Glasses (title page), also known as Perfect Sight Without Glasses (cover), in 1920.