Practical recommendations for measuring rates of visual field change in glaucoma
B C Chauhan, D F Garway-Heath, F J Goñi, L Rossetti, B Bengtsson, A C Viswanathan, A Heijl
British Journal of Ophthalmology Apr 2008, 92 (4) 569-573; DOI: 10.1136/bjo.2007.135012