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.
Best corrected vision has to be 20/200 or worse in both eyes. Peripheral vision or visual field reduction also can qualify you. If your glasses and/or contact lenses improve your vision better than 20/200 in either eye then you are not legally blind. You can have a massive prescription yet be 20/20 with correction.