Accommodation to simulations of defocus and chromatic aberration in the presence of chromatic misalignment

Abstract

Previous studies have demonstrated that accommodation will respond to sine gratings in which the relative modulations of red, green and blue image components have been altered to simulate the effects of defocus and longitudinal chromatic aberration. The present study aimed to determine the tolerance of the accommodative system to relative phase shifts in those components induced by chromatic misalignment. It was found that accommodation can tolerate moderate amounts of chromatic misalignment (6′), but responds adversely when misalignments are large. Applications to visual display terminals and spectacle lens and instrument design are discussed. © 2002 Elsevier Science Ltd. All rights reserved.