Optics
Independent bench evidence supports optical refinement within the established focal concept.
Localized diffractive changes and greater far-intermediate continuity do not establish a new focal architecture.
Review p. 04 · reference 2Evidence Review · 03
Refining an Established Trifocal
An established trifocal, optically refined. This review separates the manufacturer’s efficiency claims, independent optical metrology and direct clinical evidence to ask how much of the refinement reaches the patient.
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The evidence review in one minute
Optics
Localized diffractive changes and greater far-intermediate continuity do not establish a new focal architecture.
Review p. 04 · reference 2Clinical
Two posted randomized contralateral studies met their registered noninferiority criteria. Registry results are not journal peer review.
Review p. 06 · references 3–4Uncertainty
Manufacturer-reported scatter reduction must not be interpreted as an equivalent reduction in halos or glare.
Review pp. 07, 09The central question
How much of an optical refinement ultimately reaches the patient?
The definitive full evidence review
Complete evidence, methods and references are in the PDF.
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These declarations concern OIE and its author. They do not describe the funding or financial relationships of the studies reviewed.
Evidence appraised through 19 September 2026. Later findings may change interpretation.