Millions of Americans are affected by age-related macular degeneration (AMD), a disease that damages the eye's central vision. To learn more about macular degeneration, take this quiz, based on information from the National Eye Institute.
If you have no other vision problems, you may only need reading glasses. If you are also nearsighted or farsighted, your eye doctor can prescribe bifocals, trifocals, or progressive lenses.
More than half of Americans 80 years and older have cataracts, the National Eye Institute (NEI) says.