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.
Beaverton Enterprise Zone Areas - Aerial map of entire Enterprise Zone boundary. 1  EZone 1 - Generally located north of Tualatin Valley Highway, EZone 1 is 2.38 square miles and includes 0.64 square miles in unincorporated Washington County. 2  EZone Central was added to the Beaverton Enterprise Zone with the boundary expansion in March 2013. It is approximately 0.67 square miles and includes Regional Center multi-use zoning encompassing the historic downtown.