For any one wanting info about Brett Halliday I found this on the website.
pretty impressive I think
Mr. Halliday trained at Oxford Eye Hospital and Moorfields Eye Hospital, London (senior registrar and lecturer). Appointed to consultant NHS post in Shrewsbury in 1990. He has been an independent consultant ophthalmologist since 1997. Mr. Halliday has published papers in peer reviewed journals on diagnosis of glaucoma, acuity after cataract surgery, lens power in cataract surgery, surgery of pterygium, refractive surgery including epikeratophakia and excimer laser contrast sensitivity, surgery for blepharospasm, corneal graft surgery, surgery for keratoconus, two editorials in British Medical Journal, two chapters in text books.