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 6240-01-383-6616
NSN 5905-01-113-8116
NSN 6150-01-139-4968
NSN 5999-01-432-3805
NSN 6150-01-076-2146
NSN 5999-00-799-1013
NSN 5895-00-445-2821
NSN 6320-00-036-3688
NSN 7035-01-443-3052
NSN 5915-00-391-0163
NSN 2925-01-590-8691
NSN 5935-01-092-9457