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 5950-01-607-7553
NSN 6105-01-155-6962
NSN 6145-01-018-6539
NSN 4140-01-075-5455
NSN 5935-01-203-0261
NSN 5920-00-204-8125
NSN 5985-00-455-8555
NSN 5998-00-451-3091
NSN 4140-00-415-6513
NSN 6110-00-824-5764
NSN 6610-01-364-8295
NSN 5895-01-188-2150