Contrast transfer characteristics of the light sword optical element designed for presbyopia compensations

Krzysztof Petelczyc , S. Bará , A. Ciro López , Z. Jaroszewicz , K. Kakarenko , Andrzej Kołodziejczyk , Maciej Sypek


The paper discusses the abilities of the light sword optical element (LSOE) for presbyopia compensation. The imaging properties are analyzed by means of the modulation transfer functions and output images of the star resolution test. All numerical calculations are performed assuming an optical set-up simulating the presbyopic human eye with 3 mm pupil acting on-axis and based on the Gullstrand model. In order to have a meaningful comparison we expand our study and present adequate analysis for other elements potentially useful in ophthalmology as reading glasses, bifocal lenses and axicons. According to the obtained results the LSOE can successfully realize vision with an extended depth of field. Under assumed conditions the element makes possible the compensation of an assumed defocus up to 4 dioptres. The output images formed by the LSOE are well recognizable and have acceptable qualities for near as well as far object distances.
Author Krzysztof Petelczyc ZOiF
Krzysztof Petelczyc,,
- Optics and Photonics Division
, S. Bará
S. Bará,,
, A. Ciro López
A. Ciro López,,
, Z. Jaroszewicz
Z. Jaroszewicz,,
, K. Kakarenko
K. Kakarenko,,
, Andrzej Kołodziejczyk ZOiF
Andrzej Kołodziejczyk,,
- Optics and Photonics Division
, Maciej Sypek ZOiF
Maciej Sypek,,
- Optics and Photonics Division
Journal seriesJournal of the European Optical Society-Rapid Publications, ISSN 1990-2573
Issue year2011
Keywords in EnglishAxicons; Bifocal lens; Contrast transfer; Defocus; Extended depth of field; Human eye; Imaging properties; Light sword optical elements; Numerical calculation; Object distance; Optical set-up; Presbyopia; Resolution tests, Diffraction; Image processing; Vision, Diffractive optics
Score (nominal)25
Publication indicators WoS Impact Factor: 2011 = 1.019 (2) - 2011=1.124 (5)
Citation count*0 (2013-01-30)
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