Posters

Depth of focus depending on spherical aberrations

Poster Details

First Author: S.Pieh AUSTRIA

Co Author(s):    C. Skorpik   G. Schmidinger           

Abstract Details

Purpose:

Aim of this setup is to demonstrate in which extend spherical aberrations improve the depth of focus and reduce the image quality.

Setting:

Department of Ophthalmology and Optometry of the Medical University Vienna

Methods:

An optical bench using an artificial cornea with a spherical aberration of 0,26µm. Overall 11 intraocular lenses have been examined, so that the total wavefront showed a spherical aberration of -0,5µm to -0,5µm, in 0,1µm steps. In all 11 cases a „ Trough Focus Response' curve has been determined.

Results:

All 11 „Trough Focus Response' curves will be showed in overlapping diagrams to reveal the intersections points. These results will be correlated with the defocus distance in dioptres.

Conclusions:

Without defocussing, the wavefront without spherical aberration shows the best image quality. FINANCIAL INTEREST: NONE