Publications by authors named "K Petelczyc"
Article Synopsis
- Many patients are opting for EDOF or multifocal lenses during cataract surgery, which can lead to visual disturbances like halos and glare.
- A new perimetry method has been developed to quantitatively assess these dysphotopsias in the far-field when exposed to bright, point-like light sources.
- This approach includes a custom device and specific measurement procedures to objectively study dysphotopsias in patients with mild cataracts or implanted intraocular lenses (IOLs).
Purpose: We propose and evaluate the modifications of a light sword lens (LSL) to obtain better performance for distance vision while maintaining good operation for near and intermediate vision.
Methods: The modifications consisted of assigning angular or circular windows for distance vision while rescaling the LSL profile in the remaining area of the element. The objective performance of the redesigned LSLs was verified numerically by the Strehl ratio and experimentally using correlation coefficients and Michelson contrast.
This work presents the first models of light sword intraocular lenses (LS IOLs) with angularly modulated optical power. We performed an experimental, comparative study with multifocal and extended depth of focus intraocular lenses, which are available on the market. The measurements conducted in an original optical bench were utilised for an analysis of point spread functions, elongated foci, modulation transfer functions and the areas defined by them.
View Article and Find Full Text PDFPurpose: Clinical assessment of a new optical element for presbyopia correction-the Light Sword Lens.
Methods: Healthy dominant eyes of 34 presbyopes were examined for visual performance in 3 trials: reference (with lens for distance correction); stenopeic (distance correction with a pinhole ϕ = 1.25 mm) and Light Sword Lens (distance correction with a Light Sword Lens).
Compensation of Presbyopia With the Light Sword Lens.
Invest Ophthalmol Vis Sci
December 2016
Purpose: We present the first physiological evaluation of the use of the light sword lens (LSL) for presbyopia compensation. The LSL is an axially asymmetric optical element designed for imaging with extended depth of focus.
Methods: A monocular visual simulator setup is implemented to measure visual acuity (VA).