The metal patch was first discovered in 1991 on the atoll, according to TIGHAR, and was placed on Earhart's plane during a stop in Miami in 1937. The Miami Patch was an expedient field repair, Ric Gillespie, executive director of TIGHAR, told Discovery News.
Synthetic vision system. A modern synthetic vision system produced by Honeywell. A synthetic vision system (SVS) is a computer-mediated reality system for aerial vehicles, that uses 3D to provide pilots with clear and intuitive means of understanding their flying environment.
Vision therapy. Vision therapy, also known as vision training, is used to improve vision skills such as eye movement control and eye coordination. It involves a series of procedures carried out in both home and office settings, usually under professional supervision by an Optometrist or Orthoptist.