Glaucoma Screening


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Glaucoma Screening

In its early stages, glaucoma affects peripheral vision and may go unnoticed. Mr Hu is a Glaucoma specialist Consultant who offers glaucoma screening to determine whether you are at high risk of glaucoma and detect disease at an early stage. This minimizes the chance of developing advanced glaucoma, which can affect eligibility to drive and cause serious visual disability.

Quick Facts

  • GLAUCOMA IS GLOBALLY THE LEADING CAUSE OF IRREVERSIBLE BLINDNESS: Over 60 million people are estimated to be the total number of suspected cases of glaucoma worldwide, and of these a significant proportion, at least half of them, are unaware that they have the condition. Left untreated, glaucoma can result in loss of vision and this is why glaucoma is a leading cause of blindness.
  • GLAUCOMA STILL HAS NO CURE: The first crucial step in preserving your sight is to find out if you have glaucoma, in other words, to get a diagnosis. This is because, with treatment, it is possible to halt further loss of vision, but once vision is lost, it’s too late – it cannot be regained or restored by any means.
  • EVERYBODY IS AT RISK OF VISION LOSS DUE TO GLAUCOMA: If you are over 60, or have a family member diagnosed with glaucoma, or are diabetic, or are very nearsighted (highly myopic), or are of African or East Asian descent, you are at greater risk of having glaucoma. However, everyone from babies to senior citizens is at risk of glaucoma.
  • GLAUCOMA USUALLY GIVES NO EARLY WARNING SYMPTOMS: There may be virtually no symptoms to warn you that you have glaucoma. Getting tested & screening by an ophthalmologist or eye care specialist is the best way to prevent blindness as a result of untreated glaucoma.
General Ophthalmology

Glaucoma Screening Technology

To diagnose glaucoma, sophisticated technology is used to analyse visual function and the structural characteristics of several parts of the eye. Mr Hu has a wealth of experience interpreting these test results.

This diagnostic procedure is a direct visual examination of your optic nerve for glaucoma damage. The shape and colour of the optic nerve can be assessed by the ophthalmologist, using a special microscope called a slit-lamp, to look through the pupil of the eye, which often first needs to be dilated using eye drops.

Slit-lamp examination also highlights eye problems that create a high risk for glaucoma in the future. A visual field test and gonioscopy may then additionally be recommended.
Tonometry measures the pressure within your eye, or intraocular pressure (IOP). This is done using an instrument called a tonometer. Eye drops to numb the surface of the eye are first instilled into the eye and then a small amount of pressure is applied to the eye by a tiny device or by a warm puff of air.

A pressure of 11-21 mm Hg (“mm Hg” refers to millimeters of mercury, a scale used to record eye pressure) is considered to be within the normal range and most glaucoma cases are diagnosed with pressures greater than 21 mm Hg. However, some people with Normal-Tension Glaucoma can have optic nerve damage even at pressures of 11-21 mm Hg. Eye pressure can vary during the course of the day and is unique to each person.
Gonioscopy helps determine if the angle where the iris meets the cornea is wide & open or narrow & closed. First, eye drops are used to numb the eye and then a hand-held contact lens with an integrated mirror is placed gently on the eye so that the ophthalmologist can tell if the angle between the iris and cornea is wide and open (a possible sign of open-angle glaucoma) or closed and blocked (a possible sign of angle-closure glaucoma).
The thickness of the cornea is measured by the simple, pain-free test called pachymetry. This usually involves the placing of a probe called a pachymeter on the front of the eye (the cornea). Corneal thickness can potentially influence eye pressure readings and so needs to be taken into account when evaluating your eye pressure reading so that your treatment plan can be personalized for you. It takes only about a minute to perform pachymetry for both eyes.
A visual field test, or perimetry, maps your whole field of vision so that your ophthalmologist can tell whether your vision has been affected by glaucoma. The test involves looking straight ahead and indicating when a moving light passes your peripheral (or side) vision. It is very helpful if you can relax and respond as accurately as possible during the test. It is usual to be asked to repeat the test to see if the results have changed the next time you take it, as this will help to monitor any changes in your vision.
Optical Coherence Tomography, or OCT for short, is the optical equivalent of an ultrasound scan. It is used to make precise measurements on the microscopic structure of the optic nerve and retina, which can be affected by glaucoma. The test is quick and non-invasive.

Reasons to Choose Mr Hu

Focussed on Excellence

Mr Kuang Hu, MA MB BChir PhD FRCOphth, completed his medical degree and research doctorate at the University of Cambridge before training in Ophthalmology on the London Registrar rotation. He is a Consultant Ophthalmic Surgeon at Moorfields Eye Hospital NHS Foundation Trust.

Specialist Expertise

Mr Hu's expertise encompasses cataract surgery and the management of glaucoma. He provides medical, laser and surgical glaucoma treatments, including trabeculectomy and aqueous shunts. He also handles all aspects of General Ophthalmology.

Quality Care

Your eyesight matters and often cutting cost means reducing quality. It's worth investing in personalised treatment plans, state-of-the-art technology, and carefully tailored care delivered by a highly-qualified consultant.

Personal Service

All consultations are personally carried out by Mr Hu to ensure you have individually-tailored care throughout your journey.

Latest Technology

Mr Hu uses state-of-the-art ophthalmic instruments & machines. No expense has been spared providing the best technology available for your eyecare.

What our clients say...

A very friendly guy who is happy to break things down for you to understand exactly what is going on with your eyes and health.

- Patient