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.
This means that a legally blind individual would have to stand 20 feet (6.1 m) from an object to see itâwith corrective lenses âwith the same degree of clarity as a normally sighted person could from 200 feet (61 m).