Without treatment, glaucoma can cause total permanent blindness within a few years.

The disease can threaten vision, sometimes causing temporary or permanent blindness.

It may cause permanent blindness if rubbed into the eye.

If untreated, this eye problem can lead to permanent blindness.

It can cause temporary or permanent blindness, burns and fires.

Smallpox caused him permanent blindness before the age of five.

She had an eye infection when very young, and improper treatment caused permanent blindness.

Very rarely, cases of permanent blindness have been reported.

Rather than risk permanent blindness, Johnson retired at the age of 26.

If you do, you run the risk of permanent blindness.