EITHER NATURALLY OR WITH CORRECTIONS -- TO PASS A DRIVER'S LICENSE VISION TEST REQUIRED IN MOST STATES. THE REMAINING 6 PERCENT HAD EYESIGHT OF 20/50 OR WORSE. "THIS STUDY FOUND THAT MOST PEOPLE WHO HAVE A VISUAL IMPAIRMENT COULD ACHIEVE GOOD VISION WITH PROPER EYEGLASSES OR CONTACT LENSES. SO, IF YOU HAVE TROUBLE SEEING, YOU SHOULD GET YOUR EYES EXAMINED AS SOON AS POSSIBLE," ADDED PAUL SIEVING, DIRECTOR OF VISION RESEARCH AT NIH.