REFRACTIVE AND DIFFRACTIVE PRINCIPLES IN PRESBYOPIA- CORRECTING IOLS — AN OPTICAL LESSON.
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REFRACTIVE AND DIFFRACTIVE PRINCIPLES IN PRESBYOPIA- CORRECTING IOLS — AN OPTICAL LESSON.
- Author:
JIM SCHWIEGERLING, ANDREA PETZNICK
Diffractive multifocal IOLs intentionally induce diffraction so that the waves exiting the lens will have constructive interference at two or more distinct foci at different distances. Zonal refractive multifocal IOLs shape the waves exiting the lens from different annular regions so that they converge to two or more foci.
