Spectacle Lenses, Theory and Practice

Spectacle Lenses

Theory and Practice

By Colin Fowler, BSc, PhD, FSMC, FCOptom, Senior Lecturer, Optometry and Vision Sciences, Aston University, Birmingham, UK and Keziah Latham Petre, PhD, BSc, MCOptom, Lecturer, Optometry and Vision Sciences, Aston University, Birmingham, UK


Introduction; Basic optical principles; Spherical lens forms; Astigmatic lens forms; Prisms and prismatic effects; Spectacle lens materials and lens manufacture; Measurement of lens power; Lens aberrations, best form and aspheric lenses; Bifocal and trifocal lenses; Varifocal spectacle lenses; Tinted and treated lenses.