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daysha z

on 29 April 2014

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Transcript of Glaucoma

What is the treatment for Glaucoma?
Is there any new research being conducted?
What is Glaucoma?
Glaucoma is defined as a group of eye disorders leading to progressive damage to the optic nerve. Glaucoma is often associated with a buildup of pressure within the eye.
It is also one of the leading causes of blindness in Canada.
What are the types of Glaucoma?
Open-Angle Glaucoma
Angle-Closure Glaucoma
Other facts about Glaucoma
The questions for you:
1. How is ocular trauma associated with glaucoma and which specific type does it affect?
Open-angle glaucoma is the most common type of glaucoma.
Approximately 3 million Americans have it.
Comparing the two types:
This is the most common form of Glaucoma. “Open-angle” means that the angle where the iris meets the cornea is as wide and open as it should be.
Unlike open-angle glaucoma, angle-closure glaucoma is a result of the angle between the iris and cornea closing. It is less common and usually occurs suddenly.
What Causes Glaucoma?
Glaucoma usually occurs when pressure within your eye increases, damaging the optic nerve. This can happen when fluid in your eye isn't draining properly and leads to a build-up.
The direct cause of this blockage that prevents drainage is unknown. Although several factors influence the risk of developing the disease, such as:
Old age
Family history
Ethnic background
Medical conditions
High eye pressure
Eye injury or surgery
What are the symptoms of Glaucoma?
The Symptoms of
Open-Angle Glaucoma
Peripheral vision is
In advanced stages, the patient has tunnel vision

The Symptoms of
Angle-Closure Glaucoma
• Pain in the eye
• Nausea or vomiting
• Blurred vision
• Red eyes
• Sudden, unexpected vision problems
• Seeing halos around lights

There are typically no early warning signs or painful symptoms !
There are several different causes that are linked to glaucoma. Some of which are directly related to a specific type.
2. How do the symptoms of open-angle glaucoma affect the treatment options available for the people diagnosed with it?
Once vision is lost, it cannot be restored.
Treatment depends solely on the nature and stage of the glaucoma
Laser Surgery
Traditional Surgery
Medication is often the first treatment
1 - makes eyes produce less fluid
2 - increasing the outflow of fluid from inside the eyes
It works in two ways:
intended to decrease the pressure within the eye and prevent damage to the optic nerve.
Laser surgery works in two ways:
1 - helping the eyes drain fluid better
2 - decreasing the amount of fluid that your eyes produce
The most common form of laser surgery is laser trabeculoplasty
The laser concentrates its energy on the drainage cannal, shrinking it and reopening the holes, making it easier for fluid to drain
Traditional Surgery works in one of two ways:
1 - redirecting fluid to bypass the drainage canal that isn't working properly
2 - making new pathways for fluid to drain
A common procedure done is called filtering microsurgery
a tiny drainage hole is made in the sclera, which allows fluid to drain out of it
New research is being currently done that is focused on lowering pressure inside the eye, and finding medications to protect and preserve the optic nerve from damage.
The three parts of the eye involved in glaucoma are: the optic nerve, the ciliary body, and the angle of the anterior chamber
It is estimated that over 2.2 million Americans have glaucoma but only half of those know they have it
Everyone is at risk for glaucoma
Full transcript