How Early Diagnosis Helps Prevent Blindness

— -- Glaucoma is a degenerative eye condition that affects more than 3 million Americans, according to the National Eye Health Education Program. Early diagnosis is the key to preventing permanent blindness.

Dr. Richard Besser, ABC News chief health and medical editor, hosted a glaucoma awareness tweet chat earlier this week. Co-sponsored by the NEHEP, the chat offered plenty of information and support for anyone living with – or worried about – glaucoma.

If you didn’t get a chance to tweet in, check out Besser's topic summary tweets below!

Be sure to join in our next tweet chat on the health benefits of yoga, on Tuesday, January 27, 2015 at 1 p.m., ET. Here’s how you can participate.