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 5855-00-310-2740
NSN 5930-00-927-5975
NSN 5998-00-276-6033
NSN 5998-01-437-3152
NSN 6220-01-570-1647
NSN 6240-01-171-0374
NSN 5985-01-321-9503
NSN 5925-01-156-8708
NSN 5905-01-217-3351
NSN 6620-00-172-9222
NSN 2925-01-577-0004
NSN 5945-01-137-3348