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Purpose: Multifocal contact lenses, work under the principle of simultaneous vision, have been reported to control myopia progression in young myopes, although the mechanisms of operation and the impact of design factors on vision are not well understood. This study evaluates vision with simulated multifocal designs in myopes

Methods: Multifocal patterns inspired in commercial contact lenses was programmed in a custom polychromatic Adaptive Optics visual simulator. 10 patients (age: 23-35; SE:-0.75-4.25 D) performed visual performance (VA, Decimal Visual Acuity 8AFC procedure, tumbling E) and visual perception (Perceptual Score, PS, of a binary image,+ 10,+ 5,+ 1,-10,-5,-1, Max:+ 50) tests through the simulated patterns, under natural viewing conditions, for far (F) and near (N,-3D). Stimuli were projected in a digital light projector illuminated monochromatically (555 nm). Two patterns (P1: 2 zones …