In addition to including all of the sections on the various refractive errors subjective and objective refractive techniques and special problems in refraction from the first edition there are three new sections 1 streak retinoscopy by jack copeland 2 potential trends in refraction and altering the refractive state by joel kraut and . This book is the product of many years of thought and teaching by the author and deserves a place in the library of the discerning ophthalmologist it has not been written to be a textbook but rather a practical clinically oriented handbook the optics of certain visual problems are presented only. Full text full text is available as a scanned copy of the original print version get a printable copy pdf file of the complete article 134k or click on a page image below to browse page by page