PT - JOURNAL ARTICLE AU - J. Silver TI - Visual Optics and Refraction: A Clinical Approach AID - 10.1136/bjo.60.8.603-b DP - 1976 Aug 01 TA - British Journal of Ophthalmology PG - 603--603 VI - 60 IP - 8 4099 - http://bjo.bmj.com/content/60/8/603.3.short 4100 - http://bjo.bmj.com/content/60/8/603.3.full SO - Br J Ophthalmol1976 Aug 01; 60