Glaucoma is a major cause of visual impairment in the UK. The increased prevalence of glaucoma with age combined with demographic changes in the population means that the morbidity associated with this condition is rising, causing increasing demands on the Hospital Eye Service (HES). Once diagnosed with glaucoma, patients will remain under the care of the HES for the rest of their life. Furthermore, there is a considerable number of individuals, who are either at risk of developing or are suspected of having glaucoma, who also require long-term monitoring within this setting. It is estimated that the management of patients with glaucoma, or suspect glaucoma, currently accounts for approximately 25% of all follow-up attendances (Vernon et al. 2004), with this number likely to increase as the population ages, as case detection improves and as evidence for the early and effective treatment of glaucoma accumulates.