In vitro optical characterization of the RayOne Galaxy spiral extended depth-of-focus intraocular lens using...

Area of Science:

• Ophthalmology
• Optical Engineering
• Biomedical Optics

Background:

• Extended depth of focus (EDOF) intraocular lenses (IOLs) aim to improve uncorrected vision after cataract surgery.
• Spiral optics offer a novel approach to achieving EDOF through controlled phase modulation.

Purpose of the Study:

• To characterize the optical performance of the RayOne Galaxy spiral EDOF IOL.
• To compare its performance against conventional monofocal, trifocal, and other EDOF IOL designs.

Main Methods:

• High-resolution Mach-Zehnder interferometry was employed for precise wavefront analysis.
• A simulated pseudophakic Arizona eye model was used to mimic in-vivo conditions.
• Wavefront data were decomposed into Zernike polynomials for detailed aberration analysis.

Main Results:

• The RayOne Galaxy demonstrated a smooth extended depth of focus profile.
• A moderate reduction in contrast was observed compared to other lens types.
• Symmetry analysis indicated that radial aberrations were the primary EDOF mechanism, with the spiral feature playing a secondary role.

Conclusions:

• The RayOne Galaxy IOL achieves EDOF primarily through radially symmetric aberrations.
• The spiral design's contribution to the EDOF effect is secondary.
• Further investigation into contrast reduction and visual outcomes is warranted.