Glaucoma is an eye disease in which the normal fluid pressure inside the eyes slowly rises, leading to vision loss--or even blindness. Glaucoma produces side (peripheral) vision loss—the effects can be like looking through a tube or into a narrow tunnel.  This “tunnel vision” makes it difficult to walk without bumping into objects that are off to the side, near the head, or at foot level. 

Here is what a person with normal vision sees:

Here is what a person with glaucoma sees:

Click here to learn more about glaucoma:

• Glaucoma defined
•  Risks for Glaucoma