PT - JOURNAL ARTICLE AU - HARPER, ROBERT AU - CULHAM, LOUISE AU - DICKINSON, CHRISTINE TI - Head mounted video magnification devices for low vision rehabilitation: a comparison with existing technology AID - 10.1136/bjo.83.4.495 DP - 1999 Apr 01 TA - British Journal of Ophthalmology PG - 495--500 VI - 83 IP - 4 4099 - http://bjo.bmj.com/content/83/4/495.short 4100 - http://bjo.bmj.com/content/83/4/495.full SO - Br J Ophthalmol1999 Apr 01; 83