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 5930-00-456-2279
NSN 6220-01-492-4825
NSN 5925-01-330-8678
NSN 5950-01-099-5014
NSN 5835-00-757-3558
NSN 6135-00-145-8884
NSN 5855-01-325-9507
NSN 5930-01-355-2839
NSN 5925-00-615-4600
NSN 5895-00-989-7751
NSN 6145-01-642-3873
NSN 5920-01-605-9071