William Horatio Bates was an American ophthalmologist whose work focused on the connection between mental state and visual acuity, as detailed in his Better Eyesight Magazine (1919–1930) and Perfect Sight Without Glasses. He promoted methods such as palming and visualization to enhance vision without the use of corrective lenses, asserting that relaxation and memory significantly affect visual clarity.
His writings highlight that tension hinders vision, whereas mental tranquility improves it, as demonstrated in his studies on perception and refractive errors. Bates’ theories, although controversial, present a distinctive blend of psychology and eye health, questioning traditional methods of addressing visual impairment.