Accessibility in short is the process of making websites and website content percievable and usable by people with disabilities.
TWO simple things you can do, which make your web pages easier to use for people who are losing their eyesight or are blind.
Eyes vs. Software
People who cannot see your actual page often use software called screen readers, which reads that page read aloud. This software reads pages differently than one might visually. But TWO simple changes in the way we edit web pages can make that difference easier to manage.