If you have trouble seeing, you go to the eye doctor. The doctor tells you, you have a cataract. They schedule surgery to remove it.
It's a simple problem fixed by a short outpatient surgery. Your biggest problem is finding someone to drive you home afterward.
The problem is not so simple in a third world country. A cataract could rob you of your sight forever.
Two Maryland doctors are planning a mission trip to Mexico to bring sight-saving surgeries to people who would otherwise be in darkness. The surgeries won't cost the patients a dime.
Doctors Gus Stern and Sidney Chang from the Maryland Vision Institute joined ABC2's In Focus to discuss their trip.
See video above.