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 5965-01-384-1953
NSN 5996-01-592-8104
NSN 6320-00-032-4853
NSN 5945-00-056-8452
NSN 6145-01-406-5594
NSN 7035-00-417-2967
NSN 6135-00-050-0916
NSN 6110-01-446-1804
NSN 5965-00-465-9566
NSN 5985-01-597-9697
NSN 5915-01-563-1323
NSN 6610-01-545-5648