While it was the most deadly earthquake and the fifth deadliest natural disaster in history, there have been earthquakes with higher magnitudes. Aftershocks continued several times a month for half a year.
What eye prescription is considered legally blind? A: In order to be considered legally blind, a person must have a score of no better than 20/200 on a vision test while wearing corrective lenses, according to WebMD. The test may also be administered with a restricted field of vision, but the results must be the same. Continue Reading.
To be considered legally blind, your visual acuity must be 20/200 or worse in your better eye while you are wearing corrective lenses. The U.S. Social Security Administration (SSA) defines legal blindness as follows: Reduced central visual acuity of 20/200 or less in your better eye with use of the best eyeglass lens to correct your eyesight; or...