Abstract

A point object in space imposes on an eye accommodative and orientational demands that depend on the optical structure of the intervening space. The intervening space may contain a thick, decentered, astigmatic spectacle or contact lens, underwater goggles and water, a telescope, or a microscope, for example. The demands define the accommodation and the turn the eye needs to execute for satisfactory observation of the object. The purpose of this paper is to provide a general first-order method for determining them.

© 1997 Optical Society of America