A nonprofit called Remote Area Medical travels the USA providing free medical care to people who need it. They provide medical care, dental care and vision care at weekend events during which they see large numbers of people and charge nothing. This is the website www.ramusa.org and this provides their upcoming event - http://ramusa.org/events/list/?tribe_paged=1&tribe_event_display=list They came to Tulsa a couple of years ago and while the waits were very long (people got there on Thurs afternoon to be seen on Sat am and those who showed up on Sat were lucky if they got in on Sunday), they charged nothing and the event had a very positive feel. My exsil got a lot of teeth pulled, free glasses, and a few other things. It is worth checking to see if they are coming to your area.