The three-year completion deadline for feasibility studies is counted from the signing of the Feasibility Cost Sharing Agreement (FCSA), which initiates the feasibility phase, until the Chief of Engineers signs the Chiefâs Report.
Legal blindness relates to the best corrected vision after an eyeglass prescription is determined. You cannot look at the numbers on your eyeglass prescription to determine this. If the best you can do on an eye chart, with the best eyeglass correction, is 20/200, that is legal blindness in most states in the usa.
However, 90 percent of legally blind people can see something, even if just light. Those who can see only light are often light-sensitive and bright light can cause pain. If they can't see much beyond light, they will rarely have a warning when bright light is coming. So, dark glasses are a real necessity. And then there are the rest of us, i.e. most people who are legally blind who can actually see some but not much. We often wear glasses in order to improve our vision.