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Jacobi-Fourier phase masks as ophthalmic elements to correct presbyopia
Ángel Salas-Sanchez1, Enrique González-Amador1, Alfonso Padilla-Vivanco1
1Universidad Politécnica de Tulancingo, Tulancingo, Hidalgo, Mexico.
Summary
This study shows Jacobi-Fourier phase masks effectively correct presbyopia by extending clear vision range. The novel ophthalmic lens design minimizes dependence on pupil size and chromatic aberration for improved visual acuity.
Area of Science:
- Ophthalmic optics
- Visual science
- Biomedical engineering
Background:
- Presbyopia correction is a significant challenge in ophthalmology.
- Current solutions for presbyopia often involve trade-offs in visual quality or adaptability.
- Objective metrics like the Visual Strehl ratio are crucial for evaluating ophthalmic lens performance.
Purpose of the Study:
- To investigate Jacobi-Fourier phase masks as ophthalmic elements for presbyopia correction.
- To develop a contact or intraocular lens with performance insensitive to pupil diameter variations.
- To enhance the range of clear vision for individuals with presbyopia.
Main Methods:
- Numerical simulations using Fourier optics to evaluate Jacobi-Fourier polynomials.
- Performance assessment across different pupil sizes (6, 4, and 2 mm) and wavelengths (656.3, 587.6, 486.1 nm).
- Validation using the Visual Strehl combined objective metric (VSCombined) for non-symmetrical phase functions.
Main Results:
- Jacobi-Fourier phase masks effectively extend clear vision for presbyopic eyes (1-6m).
- Visual acuity of at least 0.10 logMAR (6/7.5 Snellen) was achieved.
- Performance remained consistent across varying pupil sizes, with improved retinal image contrast and reduced artefacts.
Conclusions:
- Jacobi-Fourier phase masks show promise for presbyopic correction.
- The proposed ophthalmic elements offer a good range of clear vision.
- Reduced dependence on pupil size and chromatic aberration are key advantages.
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