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.
Report Abuse. Much higher prescriptions are available. I have seen someone who was - 22.00 D. When you put your spectacles over your contact lens, you now have an extra unnecessary -1.00 of prescription. But you can focus your eyes (like you do when you are reading) by +1.00 D and this cancels out the extra prescription from your spectacles.