Now available as a toric IOL
Developed in collaboration with Professor Graham Barrett, RayOne EMV’s truly non-diffractive optic utilises positive spherical aberration to uniquely extend vision whilst avoiding the problems that can arise with diffractive lenses.
RayOne EMV’s range of focus can be extended further with a customisable offset for Enhanced Monovision outcomes.
Professor Graham Barrett, president of the Australasian Society of Cataract & Refractive Surgeons
RayOne EMV is a truly non-diffractive IOL which does not use light splitting technology like many IOLs which increase depth of focus, resulting in low levels of dysphotopsia, similar to standard monofocal lenses.1
RayOne EMV is the only patented aspheric IOL that induces controlled positive spherical aberration.
Compared to a lens with zero spherical aberration, the carefully controlled positive spherical aberration induced by RayOne EMV spreads light along the visual axis, elongating the focal range from far into intermediate with up to 1.5 D of depth of focus (per lens on the spectacle plane).
Below shows an illustration of a lens with zero aberration and a small focal range (Figure 1), shown together with RayOne EMV with positive spherical aberration and a larger focal range (Figure 2).
The positive spherical aberration induced by RayOne EMV complements the natural spherical aberration of the human cornea and gently increases depth of focus into the intermediate range – see illustrative Figure 3.
An equivalent negative spherical aberration IOL needs to first negate the positive spherical aberration of the cornea, then add even more negative spherical aberration to induce any required depth of focus improvements.
The total spherical aberration used on the RayOne EMV is therefore designed to be significantly less than for equivalent negative spherical aberration extended depth IOLs, and the RayOne EMV optical surface remains closer to spherical in form, thus making performance more consistent under normal tilt and decentration conditions.
KEY INFORMATION
DESIGNED TO PROVIDE
Proven rotational stability and centration8 with predictable, sustainable and accurate visual results
Average offset of only 0.08 mm 3 to 6 months after surgery8
1.83° mean IOL rotation 3 to 6 months after surgery8
Available in a wide range of IOL plane cylinders: +0.75 D to +4.5 D,in +0.75 D increments
Since the launch of RayOne EMV in 2020, clinical data from across Europe has demonstrated that:1,2,3,6,7
The following clinical results are from patients in the UK, Spain and Portugal during the months leading up to the commercial launch of RayOne EMV.2
Mr Allon Barsam, Consultant Ophthalmic Surgeon & Director at OCL Vision
Rayner is a British medical device manufacturer.
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