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 5835-01-469-8968
NSN 5855-01-398-0090
NSN 5960-00-781-3503
NSN 5915-01-485-7312
NSN 5895-01-444-9501
NSN 5910-00-522-5208
NSN 5985-01-383-6799
NSN 5985-00-945-9323
NSN 5990-01-370-7912
NSN 6130-00-035-3898
NSN 5905-01-015-0638
NSN 6240-01-347-2577