Glaucoma | Cathedral Eye Clinic | Glaucoma Diagnostic and Surgical Care


Cathedral Eye Clinic is now providing state of the art glaucoma diagnostic and surgical care to improve patient’s quality of life by reducing their requirement for topical anti-glaucomatous drop therapy. Mr. Maged Nessim & Professor Colin Willoughby are now offering assessments to known glaucoma patients to assess as to whether they would be suitable for these revolutionary treatments designed to improve control and often reduce or even eliminate the need for on-going topical drop therapy.

What is Glaucoma?

Glaucoma is a disease which results in progressive damage to the optic nerve. The prevalence of this disease has been estimated through various studies to be in the region of 2% of the population. This rate rises considerably with age so that over the age of 80 greater than 12% of the population may be affected. Often glaucoma goes undetected until significant visual loss has occurred

What evidence is there that treatment is effective for glaucoma?

  • The early manifest glaucoma treatment study has shown that treatment reduces progression of disease.
  • The ocular hypertensive treatment study showed that intraocular pressure reduction by 20% decreased the risk of disease progression.
  • The advanced glaucoma intervention study showed that lower IOP is associated with reduced progression of visual field loss.
  • The collaborative normal tension glaucoma study showed that reducing IOP by 30% reduced glaucoma progression.

It is therefore very important to pick up evidence of the disease as early as possible to enable doctors to intervene before significant damage has occurred.

How do You Know if You Should be Screened for Glaucoma?

  • Are you over 40 years of age?
  • Has anyone in your family ever been diagnosed with glaucoma?
  • Have you ever been diagnosed with hypertension or diabetes?
  • Is it more than 2 years since you have had a comprehensive eye test?

If your answer to any of these questions is ‘yes’ then you should be screened.

What Tests Will be Carried Out During Screening?

  • Visual acuity is a common ocular test routinely carried out by any ophthalmic practitioner.
  • Intraocular pressure measurements.
  • Visual field testing.
  • Optic nerve examination and documentation.


Will Testing Always Tell Me if I Have Glaucoma?

Often in the early stages of glaucoma it is not possible to definitively determine the diagnosis. In these cases the importance is that regular follow up occurs and treatment intervention if required.

Gluacoma - All Videos

What Form Of Post Operative Care Is Given?

What Level Of Quality Will I Receive?

What Happens At A Laser Suitability Assessment?

quote marks icon

“I will never forget the names of the people in Cathedral Eye Clinic and how they’ve given me a new lease of live and a spring in my step, I’m just so grateful”

closing quote marks icon
Liesl Parker
Trustpilot Logo Transparent

Book a Consultation

To book a complimentary “Am I Suitable?” appointment for laser surgery, or to book a consultation, complete the contact form or contact us today on