Daltonism is a specific type of red-green color vision deficiency, also known as color blindness. People with red-green color vision deficiency may confuse colors that contain red or green elements.

You’ve never seen these ones before! You might have taken color blindness tests with numbers online or when getting your eyes checked at the doctor’s, but I guarantee you haven’t seen these pictures!

CLEVELAND, Ohio — Case Western Reserve University is hoping to offer the first therapy for an inherited eye disease leading to blindness. Shigemi Matsuyama, an associate professor of ophthalmology and ...