Quick guide to standard alignment; Quick guide to fitting; Troubleshooting: a fast reference guide; Frame types and parts; Frame measurements and markings; Measuring the interpupillary distance; Frame selection; Reference point placement, multifocal height, and blank size; Ordering and verification; Lens insertion; Standard alignment; Adjusting the frame; Repairs and modifications; Progressive addition lenses; Absorptive lenses; Review of basic mathematic principles; Refraction of a single light ray; Refraction of multiple light rays; Lens form and analysis; Optical considerations with increasing lens power; Optical prism; The near addition; Prism and accommodation at near; Lens materials and protective eyewear; Special lens designs;Appendixes: ANSI Z80.1 prescription ophthalmic lenses -- recommendations; ANSI Z87.1-1989 eye and face protector selection chart; Special purpose frames; Glossary.