1. National Patient Safety Agency. Preventing delay to follow-up for patients with glaucoma. Rapid Response Report. 2009. NPSA/2009/RRR004. Gateway reference: 11994. http://www.nrls.npsa.nhs.uk/resources/type/alerts/?entryid45=61908
2. NICE guidance CG85. Glaucoma: diagnosis and management of chronic open angle glaucoma and ocular hypertension. Accessed April 2009. http://guidance.nice.org.uk/CG85
3. The future of glaucoma clinics