Elikington, Andrew R. Helena J. Frank Michael J. Greaney creator text USA Blackwell Science 1999 monographic viii, 264 p. : ill. ; 24 cm. Includes Index Eye diseases-Physiology Physiological optics Optonutry-Orthoptics Refractive surgery Astigmatic lenses Spherical lenses Contact lenses Presbyopia Instruments Prisms Lasers Optometry RCR&AHS 617.75 ELK 0632049898 (pbk)