Glaucoma is a condition where the pressure inside the eye exceeds the optic nerve fibres. When pressure builds up in the eye, Known as Intraocular pressure (IOP), the clear liquid called the aqueous humour which normally flows in and out of the eye, is prevented from draining properly. The resulting increase in pressure within the eye can damage
the optic nerve.
As optic nerve fibres are damaged by GLAUCOMA, small blind spots may begin to develop, usually in the side - or peripheral - vision. Many people
don’t notice the blind spots until significant damage to the optic nerve occurs leading to loss of vision & blindness if untreated.
In Nigeria, glaucoma is a devastating and often neglected problem. It is a leading cause of blindness, second only to cataract. Glaucoma in Nigeria is predominantly open angle glaucoma (OAG), which begins at an earlier age in Black People than in Caucasians (people of European descent) and the disease typically advances rapidly. In the majority of cases diagnosis is made late after loss of central vision in one or both eyes.
Glaucoma in Nigeria in the over 40 age group has been estimated at over 10%. High prevalence, early onset of disease, and an aggressive course combine to produce a high rate of blindness due to glaucoma. It is therefore extremely important that the risk group must present themselves for twice yearly eye checks.
Symptoms of Glaucoma
Glaucoma does produce noticeable symptoms, which include:
* Blurred vision.
* Severe eye pain.
* Halos (which may appear as rainbows) around bright lights.
* Nausea and vomiting.
Who is at risk?
Black adults aged 40 years and above are at greatest risk of contracting Glaucoma. Other high-risk individuals, including people, who have relatives who have, or have had Glaucoma, diabetics and very nearsighted people.
Glaucoma can be detected using a simple and painless measurement of pressure in the eye. This test is called tonometry.
Four criteria are used to diagnose Glaucoma:
1) Pressure within the eye,
2) The appearance of the meshwork,
3) The appearance of the optic nerve,
4) The individual’s visual field, particularly peripheral vision.
The type of treatment to be used in Glaucoma cases depends on the severity of the damage done to the optic nerve. Ideally, open angle Glaucoma can be controlled by daily drops or medications used daily. If these methods fail to decrease the pressure inside the eye, Laser Treatment or surgery will be necessary to relieve the pressure. It is pertinent here to note that vision lost due to damage to the optic nerve cannot be restored Medication, Laser treatment (Argon laser trabeculoplasty) or surgery (sclerectomy or Trabeculectomy) can only prevent further loss of sight. Glaucoma can only be stemmed, it cannot be cured.
For patients with Glaucoma and cataract, Maxivision surgeons have perfected the most modern method in the world for dealing with this combination of problems - non-penetrating deep sclerectomy (NPDS) combined with phacoemulsification (phaco-NPDS) during the same operation, The surgical strategy decision is necessarily customized to every patient by the Maxivision Laser Eye Centre ophthalmologists. Usually, they will adopt filtering surgeries for glaucoma patients with incipient cataract, and combined phacoemulsification with non-penetrating deep sclerectomy for progressive or advanced glaucoma, which achieves much better results with a much reduced rate of complications.
Standard diagnosis and consultation with Ophthalmologist:
*Visual acuity assessment.
*Non Contact pneumatic Tonometry.
*Computerized ultrasound B scanning.
*Computerized ultrasound Echobiometry.
*Computerized Perimetry (Visual field analysis).
*Digital ultrasound pachymetry.
*Binocular ophthalmoscopy (Fundus examination).
Glaucoma is the name given to a range of conditions in which the majority have increased pressure within the eyeball, leading to permanent, and irreversible damage to the optic nerve, with eventual
blindness if left untreated..
A person with glaucoma is usually unaware they have glaucoma
until serious loss of vision has occurred. In fact, nearly half of those
suffering damage from glaucoma are unaware they have the disease because it develops without obvious symptoms. As the damage from glaucoma cannot be reversed, early detection, diagnosis, and treatment by your ophthalmologist is vital to preserve your vision.
Thankfully, we have the capability to stop and prevent further damage
to the nerve, and your sight. The vast majority of patients maintain useful sight, with the help of the correct diagnosis and treatment. We can offer expert bespoke consultations, using the latest diagnostic tests. Glaucoma management has evolved rapidly in the last five years,
and it is vital your ophthalmologist has the desired training in the subject.
VISIT OUR state of the art GLAUCOMA DIAGNOSTIC and TREATMENT CENTRE and receive the best in glaucoma care!
We include 8 specialist examinations in our glaucoma check!
(not just the usual 2 or 3 offered at most clinics)
Click on the images to see the diagnosis box.
The latest technology to monitor the health of your eyes
OCT (Optical Coherence Tomography) and GDx Scans :
Clear images of the Retinal and Optic nerve scans so you can see in amazing detail, the structures involved, and monitor glaucoma like never before! We are able to measure the size of your nerve, and ensure any abnormal change is detected quickly, before any damage appears in your vision.
Ocular Blood flow measurements: Latest research clearly shows that patients with Glaucoma have reduced blood flow (oxygen) in the optic nerve, and for the first time we have the technology to monitor this, allowing new methods of detection and treatment.
Corneal Pachymetry (thickness): Allows more accurate pressure readings by taking into account the thickness of your cornea, which has been shown to influence readings. This ensures your Eye pressure (IOP) readings are always correct.
Ziess Humprey Visual field tests: The latest SWAP software (Short Wave Analysis Perimetry: yellow-blue light) allowing Glaucoma to be detected up to 5 years earlier than previously possible!