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Wavefront shaping anterior intraocular lens technology

Molecular classification: Other (optical/medical device technology; not molecular)

Overview

Wavefront shaping anterior IOL technology refers to a novel optical design principle used in certain non-diffractive extended depth of focus (EDoF) intraocular lenses (IOLs) for cataract surgery. Instead of splitting light into multiple focal points (as in diffractive or multifocal IOLs), wavefront-shaping technology modifies the travel distance and curvature of light entering the eye through two subtle, smooth surface transitions on the anterior lens surface. This produces a continuous extended focal range, allowing patients to achieve clear vision from distance to near with a low incidence of visual disturbances like halos and glare. Examples of IOLs using this technology include the AcrySof IQ Vivity and Clareon Vivity IOLs (Alcon). The technology is a major advancement in lens-based presbyopia correction, focusing on maximizing depth of focus and minimizing unwanted visual symptoms[1][2].

Other names: Wavefront-shaping IOL technologywavefront-shaped IOLnon-diffractive EDoF IOL technologyX-WAVE technology (Alcon’s brand)

Disease associations

Other (used in presbyopia, cataract surgery; not relevant to classic disease roles)

Safety considerations

Potential reduction in contrast sensitivity compared to monofocal IOLs[2].May still cause visual disturbances (small risk of halos, glare, or starbursts), though these are less frequent than in diffractive multifocal IOLs[1][2].

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