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 6220-01-610-3512
NSN 5985-00-104-5650
NSN 6685-00-146-2308
NSN 6150-01-437-1588
NSN 6110-00-052-2655
NSN 6610-00-533-3799
NSN 6650-01-442-0267
NSN 6110-01-541-1300
NSN 6685-00-089-7974
NSN 6645-01-215-0617
NSN 6150-01-555-5521
NSN 5965-01-063-3442