Tag Archives: blind

Glaucoma and Your Eyes


What is Glaucoma? Glaucoma is a condition that causes damage to your eye’s optic nerve and gets worse over time. It’s often associated with a buildup of pressure inside the eye. Glaucoma tends to be inherited and may not show up until later in life. The increased pressure, called intraocular pressure, can damage the optic nerve, which transmits images to ...

Read More »

The Boy Who Sees Without Eyes


Ben Underwood, who died in January 2009 just before his 17th birthday, was the only person in the world known to have taught himself to navigate using sonar, like a dolphin. He lost his eyes to cancer when he was just 3 years old, and learned how to “see” by using clicks, mastering echolocation to such an extent that it ...

Read More »