At some point in our lives, most of us will experience some form of vision loss. Educating yourself on the most common conditions will help you recognize signs and symptoms. Acting early on the onset of some symptoms is crucial for reversible conditions. Educate yourself on these six most common eye problems to prolong your good eye health: refractive errors, cataracts, keratoconus, macular degeneration, diabetic retinopathy and glaucoma.