Impaired vision and blindness are common. About 3.4 million people in the US are blind or visually impaired. Vision is usually measured by visual acuity charts, and normal vision is expressed as 20/20 ...

Fixing color contrast issues should not take long. Ideally, you'll always use dark text on a light background or light text on a dark background. When you have a few minutes, identify a few pages at a ...