Question 1

What is glaucoma?

Accepted Answer

Glaucoma is a group of eye conditions characterised by damage to the optic nerve, which sends visual messages to the brain. Primary open-angle glaucoma is the most common form. It often occurs when fluid from the eye cannot drain properly, leading to increased pressure that damages the optic nerve and can affect vision.

Question 2

What is the treatment for glaucoma?

Accepted Answer

Treatment for glaucoma includes medication in the form of eye drops, as well as laser and surgical intervention. Your doctor may recommend PRESERFLO MicroShunt if you could benefit from an aqueous shunt to help control your eye pressure.

Question 3

What is an aqueous shunt?

Accepted Answer

An aqueous shunt is a small, tube-like drainage device used to help control intraocular pressure. It creates an escape tunnel for excess fluid from inside the eye to safely drain into a small filtering bleb behind the eyelid. From there, the fluid is slowly absorbed into the bloodstream. Aqueous shunts are designed to stay in your eye permanently.

Question 4

Will an aqueous shunt improve my existing vision problems?

Accepted Answer

Unfortunately, any damage to the optic nerve caused by glaucoma is likely to be permanent, so the aqueous shunt will not help with any existing vision problems. However, by lowering intraocular pressure, it can help prevent further vision loss.

Question 5

What are the benefits of an aqueous shunt device?

Accepted Answer

By draining away excess fluid from inside the eye, an aqueous shunt helps relieve pressure and prevent further damage to the optic nerve. Compared with more traditional filtering surgeries, implantation of an aqueous shunt may result in fewer post-operative complications that require extra intervention.

Question 6

How is an aqueous shunt implanted?

Accepted Answer

Aqueous shunt implantation can be performed under local or general anaesthetic; your doctor will discuss which is the right option for you. The PRESERFLO MicroShunt is usually implanted behind the upper eyelid through a small filtering procedure.

Question 7

How should I prepare for the surgery?

Accepted Answer

Your doctor will advise you on what to do in the time before and on the day of your surgery, including instructions on taking your current glaucoma medication. You may also be advised to arrange for someone to accompany you home after surgery.

Will an aqueous shunt improve my existing vision problems?

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