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 5965-01-553-6689
NSN 5910-01-606-5661
NSN 6620-01-452-4034
NSN 5855-01-634-0259
NSN 6320-01-547-9877
NSN 5930-00-708-1968
NSN 6105-01-592-3866
NSN 5835-00-393-1996
NSN 6220-01-622-7783
NSN 4140-00-603-5074
NSN 6105-00-754-8248
NSN 6650-01-359-5385