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 6150-00-090-6982
NSN 5990-00-518-7525
NSN 2925-00-233-5644
NSN 5905-01-183-6675
NSN 4140-01-054-3553
NSN 6240-01-526-7288
NSN 5905-00-330-9625
NSN 5920-01-226-4950
NSN 5855-01-278-8922
NSN 2925-01-335-4549
NSN 5975-01-423-8910
NSN 6220-00-758-6370