Refraction and how to refract
Subtitle: including sections on optics, retinoscopy, the fitting of spectacles and eye-glasses, etc.
By: by James Thorington.
Publisher: P. Blakiston's Son & Co.
Published: 1900
Place of publication: Philadelphia
Language: eng
Number of pages: 301
Subjects: Eye -- Accommodation and refraction; Eye -- Examination; Eyeglasses; Refraction, Ocular