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Micro-Invasive Glaucoma Surgery

Glaucoma is an eye condition which damages the optic nerve, the nerve that is needed for good vision. The eye damage is normally caused by abnormal high pressure in your eye. 

When is glaucoma surgery needed?

Glaucoma is a known cause of blindness for people over the age of 60 if left untreated, but it may develop at any age, even though it's more common in older adults.  It is essential to visit the ophthalmologists promptly if you experience symptoms of acute angle-closure glaucoma, such as:

  • Severe headache
  • Eye pain
  • Blurred vision
  • Red eyes
  • Lights appear which have extra halo-like glows around them
  • Eye pain that is often accompanied by nausea and sometimes vomiting
  • Sudden and unexpected vision problems, especially when the lighting is poor

If the above mentioned are left untreated, glaucoma will eventually lead to blindness. Acute angle-closure glaucoma is treated as a medical emergency where pressure-reducing medications are carried out immediately.

What does surgery involve?

Dr Davey may suggest a micro-invasive glaucoma surgery (MIGS) to lower your eye’s pressure, if oral medication and eye drops don’t seem to work or if you can’t tolerate them. These procedures may involve an implant of a modern microstent into your eye or a microincision surgery to maintain a healthy eye pressure and prevent blindness. During the process, Dr Davey will also make small incisions on the white area of the eye and remove some of the tissue inside to help the extra fluid drain out. Modern micro-invasive glaucoma stents like the XEN implant and the I-Stent are also good surgical options performed by Dr Davey to treat glaucoma. Dr Davey will prescribe some medication which may be glaucoma eye drops, after the surgery to prevent scar tissues from forming. 

In some cases, micro-invasive glaucoma surgery is done alongside a cataract surgery which then adds a small amount of time to the total surgical procedure. After the procedure, you will have to see Dr Nicholas Davey for follow-up exams where you may need to undergo additional procedures if your eye pressure starts to rise again or there are some other changes occurring in your eye.

When should I see an ophthalmologist?

People that have a family history of eye disease, a history of eye injuries, diabetes or those
over the age of 65 should see their ophthalmologist regularly. In addition, the following
symptoms should be checked out by an eye specialist:

  • Changes in vision
  • Flashes of light
  • Floaters or specks in your vision
  • Lines that appear distorted
  • Darks spots in your vision
  • Decreased or blurry vision (even if temporary)
  • Double vision
  • Dry and itchy eyes

  • Eye pain
  • Eye or surroundings of the eye is red
  • Eye discharge or tearing
  • Bulging of one or both eyes


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