Download or read book Duke-Elder's Practice of Refraction written by David Abrams and published by . This book was released on 1993 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the theory and practice of the correction of defects in the optical system of the eyes and their associated muscles. Includes coverage of contact lenses, methods of objective testing, lens implantation after cataract surgery, and contrast sensitivity testing for visual acuity.