Types of glaucoma
Types of glaucoma

The image shows various types of glaucoma such as open angle glaucoma, angle closure glaucoma. The image also shows a healthy optic nerve and damaged optic nerve due to glaucoma.

What causes glaucoma?
What causes glaucoma?

Your eye constantly makes aqueous humor. When new aqueous flows into your eye, the same amount has to drain out through an area called the drainage angle. This keeps pressure in the eye stable. But if the drainage angle is not working properly, fluid starts building up. Pressure inside the eye rises in glaucoma, which causes damage of the optic nerve.

What is glaucoma?
What is glaucoma?

Glaucoma is a disease of the eye in which fluid pressure within the eye rises. If it is left untreated, the patient may lose his or her vision and can even become blind.

Eye with glaucoma
Eye with glaucoma

The picture shows retinal image of left eye in a 76 years old woman with glaucoma. 

Mechanism of aqueous buildup due to glaucoma
Mechanism of aqueous buildup due to glaucoma

Fluid stays in your eyes causing the builup of pressure called intraocular pressure. This may be because the discharge canal is blocked.

Acute angle closure glaucoma in a patient's eye
Acute angle closure glaucoma in a patient's eye

Close up of acute angle closure glaucoma during eye examination in a glaucoma patient.

Stages of glaucoma
Stages of glaucoma

Optic nerve damage caused by glaucoma creates a visual field defect. During a routine eye exam, your ophthalmologist may perform visual field testing to determine horizontal and vertical ranges and sensitivity of your vision. The image shows different stages of glaucoma and how your vision is affected in each of these stages.

What you should know about glaucoma?
What you should know about glaucoma?

Learn about glaucoma, risk factors, and available treatment options.

Drainage angle
Drainage angle

The drainage angle is the location in your eye where the coloured part of your eye (iris) and the white covering over the eye (sclera) meet. This is the location where fluid within the inner eye drains. Blockage of this angle can cause increased pressure in the eye. The increased pressure can damage the optic nerve and cause glaucoma.