21. Anatomy of the Apodized Diffractive IOL Step heights decrease peripherally from 1.3 – 0.2 microns A +4.0 add at lens plane equaling +3.2 at spectacle plane Central 3.6 mm diffractive structure
22. Theoretical Total Energy Balance at 550 nm for AcrySof ® ReSTOR ® Apodized Diffractive Optic Smaller steps further out direct less light to near Grossly magnified schematic . Larger steps at lens center divide light equally between two images 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1 2 3 4 5 6 Pupil Diameter (mm) @ 550 nm Relative Energy Distance Focus Near Focus