Use of a cubic phase plate as solution for moderate astigmatism: preliminary study
C. Almaguer, J. Arines
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Base Information
Volume
V50 - N2 / 2017 Ordinario
Reference
155-163
DOI
http://doi.org/10.7149/OPA.50.2.49014
Language
Spanish
Keywords
Astigmatism, neural transfer function, cubic phasemask, Intraocular Lenses, Contact Lenses, visual acuity
Abstract
This work analyzes the use of a single cubic phasemask as a solution to moderate astigmatism of different orientations and magnitudes. The experimental results with artificial eye show that a cubic phasemask of the type 7.07 µm×(Z33-Z3-3) @ 5mm pupillary diameter, can be a solution to the astigmatism up to 3D with different orientations. The logMAR visual acuity obtained for all orientations is close to 0.05 for pupil sizes of 3 mm, 5 mm, 7 mm. These results are a good starting point for the development of contact lenses or intraocular lenses that do not require stabilization systems increasing tolerance to errors in the correction of the astigmatism.
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