Optics
Independent optical testing supports an extended, relatively smooth and pupil-dependent response.
Extended focus comes with moderated contrast rendering and lower peak quality than a monofocal reference.
Review pp. 03–04 · references 2–4Evidence Review · 02
RayOne Galaxy
Spiral Optics and the Pursuit of Continuous Vision
A spiral refractive strategy for broad functional vision. The review examines where optical testing and early clinical findings converge, and where comparative evidence remains immature.
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The evidence review in one minute
Three key takeaways
Clinical
An early multicentre series shows clinically useful binocular range.
The single-arm study enrolled 91 patients; only 25 completed the three-month visit. There was no implanted comparator.
Review p. 05 · reference 1Uncertainty
Comparative clinical superiority and a reduction in dysphotopsia remain unproven.
Validated quality-of-vision outcomes, mesopic function and longer-term data need stronger evidence.
Review pp. 07–11The central question
Can a spiral refractive optic broaden functional vision without relying on conventional diffractive light splitting—and can it do so while preserving acceptable visual quality?
The definitive full evidence review
Follow the evidence.
Complete evidence, methods and references are in the PDF.
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Publication transparency
These declarations concern OIE and its author. They do not describe the funding or financial relationships of the studies reviewed.
Evidence appraised through 16 September 2026. Version 1.0. Later findings may change interpretation.