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 5935-01-374-8481
NSN 5945-00-401-0115
NSN 6645-01-642-3637
NSN 5910-00-908-0768
NSN 5935-01-380-0952
NSN 5999-00-246-2216
NSN 4140-01-499-2500
NSN 5855-00-436-3852
NSN 5950-01-520-6385
NSN 5905-00-149-0677
NSN 5985-00-446-2756
NSN 6105-01-406-6694