Golembovskiy O.O.

The Method for Evaluating Ametropia and the Depth of Focus of the Eye

The need is established for measuring pseudo-accommodation (the depth of focus of the eye) when a standard artificial or accommodative lens is implanted into the eye. It is specified the need for analyzing the impact of aberrations of a measuring device’s elements as well as the pupil’s diameter onto the accuracy of ametropia and pseudo-accommodation measurements by the method, proposed by the authors. In this study, a computer simulation is applied for an optical system of the measuring device and an ametropic eye with a diffuse-scattering retina.

Technique and Device for Measuring the Human Eye’s Depth of Focus

In this paper, we demonstrate that the depth of focus (DOF) of the eye’s optical system during implantation of intraocular lenses and aberration correction of presbyopian eyes should be identified and measured. The known methods and devices are described to determine the pseudo-accommodation volume of presbyopic eyes by subjective and objective methods. Their advantages and disadvantages are analyzed. We show that the main disadvantage of subjective methods is the impossibility to separate a pseudo-accommodation component caused by the eye’s optics from its total volume.