1. Number of people with glaucoma worldwide;Quigley;Br J Ophthalmol,1996
2. The global impact of glaucoma;Thylefors;Bull World Health Org,1994
3. The probability of blindness from open-angle glaucoma;Hattenhauer;Ophthalmology,1998
4. The variation and covariation of cup and disc diameters;Bengtsson;Acta Ophthalmol (Copenh),1976
5. Automated Static Perimetry;Anderson,1992