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 5925-00-251-3283
NSN 6220-00-296-4101
NSN 5985-00-893-0532
NSN 6685-00-143-4747
NSN 5930-01-148-6254
NSN 5965-01-484-9818
NSN 5915-01-022-3934
NSN 6685-01-055-5298
NSN 6145-01-190-4169
NSN 5945-01-347-5808
NSN 5930-01-235-8878
NSN 5998-01-516-4363