A transparent optical element having equal spherical diopter curvatures used to correct hyperopic (farsightedness) or myopic (nearsightedness) conditions of the eye.
Classification: Lenses, prisms, and mirrors, unmounted, nesoi
NSN 6135-01-167-7604
NSN 5960-00-062-4906
NSN 5996-01-408-8055
NSN 5985-01-447-3043
NSN 5835-00-223-7235
NSN 5935-01-204-6195
NSN 5855-00-079-2370
NSN 5998-01-616-0847
NSN 4140-00-189-0235
NSN 4140-01-375-9921
NSN 5998-01-366-3604
NSN 5985-00-365-6806