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.
For example, the shortsighted glasses prescription could be -10, -15 or -20, and as long as a person can see better than 6/60 or 20/200 (with a visual field of >20 degrees) while wearing those glasses then they are not blind. It is not the prescription that determines legal blindness. Legal blindness is visual acuity (usually determined using a standard eye chart) which is 20/200 or less in the better eye with the best possible correction (or a restricted visual field of 20 degrees or less). That best possible correction (i.e. the eyeglasses/contact prescription you mentioned) would vary depending on the person.