2018-01-092018-01-091985http://hdl.handle.net/2152.3/4349STS-51-D was the sixteenth flight of NASA's Space Shuttle program, and the fourth flight of Space Shuttle Discovery (12 April, 1985- 19 April).This image reflects STS-51-D Edwin J. Garn's pupil size.STS-51-DSpace MedicineshuttleEdwin J. Garnpupil size