Chromatic changes in vision with diffractive ophthalmic optics
Diffractive optics is a valuable technique for designing presbyopia-correcting lenses, but its effectiveness is wavelength-dependent. This study investigates the spatio-chromatic alterations in visual resolution associated with diffractive multifocal lenses by using non-invasive, removable diffracti...
| Authors: | , , |
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| Format: | article |
| Publication Date: | 2024 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/405216 |
| Online Access: | https://hdl.handle.net/2117/405216 https://dx.doi.org/10.1364/OE.512212 |
| Access Level: | Open access |
| Keyword: | Ophthalmic lenses Visual acuity Presbyopia Lents oftàlmiques Agudesa visual Àrees temàtiques de la UPC::Ciències de la visió::Òptica física Àrees temàtiques de la UPC::Ciències de la visió::Instruments òptics i optomètrics::Lents oftàlmiques Àrees temàtiques de la UPC::Ciències de la visió::Optometria::Agudesa visual |
| Summary: | Diffractive optics is a valuable technique for designing presbyopia-correcting lenses, but its effectiveness is wavelength-dependent. This study investigates the spatio-chromatic alterations in visual resolution associated with diffractive multifocal lenses by using non-invasive, removable diffractive bifocal contact lenses. The study combines theoretical analysis, numerical simulation, and clinical intra-observer experiments to assess visual acuity under various lighting conditions. Results demonstrate the introduction of spatio-chromatic asymmetry and a change in visual acuity under red and blue lights, depending on the operating diffraction order employed in the lens design. The energy distribution of the diffractive contact lens studied favors resolution under red illumination at far distances and under blue illumination at near distances. These findings are consistent with computational simulations and provide insights into the visual changes induced by diffractive ophthalmic lenses. |
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