%0 Journal Article %A DEBORAH KAMAL %A ROGER HITCHINGS %T Normal tension glaucoma—a practical approach %D 1998 %R 10.1136/bjo.82.7.835 %J British Journal of Ophthalmology %P 835-840 %V 82 %N 7 %U https://bjo.bmj.com/content/bjophthalmol/82/7/835.full.pdf