The definition of legal blindness used in this country requires a best-corrected distance visual acuity of 20/200 or worse in the better eye or a visual field reduction to 20[degrees] in diameter or less. Prevalence and characteristics of dual sensory impairment (hearing and vision) in a veteran population.
Beaverton, Oregon. Beaverton is a city in Washington County, in the U.S. state of Oregon. The city center is 7 miles (11 km) west of downtown Portland in the Tualatin River Valley. As of the 2010 census, the population is 89,803. This makes it the second-largest city in the county and Oregon's sixth-largest city.
Lehighton is located in southern Carbon County at 40Â°49â²55â³N 75Â°42â²53â³Wï»¿ / ï»¿40.83194Â°N 75.71472Â°Wï»¿ / 40.83194; -75.71472 (40.831932, -75.714701). It is in northeast Pennsylvania 24 miles (39 km) north/northwest of Allentown and 42 miles (68 km) south of Wilkes-Barre.