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Progressive lenses are corrective lenses ... The point of reading is about 14 mm below and 2 mm to the nasal side in comparison to distance viewing. ... the price is ...
In 1993, Varilux Comfort [14] was launched and became the world's best-selling progressive lens. Varilux Comfort represented a new concept of the progressive lens; it was the first progressive lens which combined the advantages of a "hard" design (type Varilux) and a "soft" design (type Varilux 2). [12]
Adjustable focus lenses, like single-focus lenses, also reduce image-jump and spatial distortion in the field of view associated with traditional multi-focal lenses. Additionally, the ideal near-vision correction can be achieved with precision, because the variable lenses emulate the focusing action of the youthful (non-presbyopic) eye.
Multifocal contact lenses (e.g. bifocals or progressives) are comparable to spectacles with bifocals or progressive lenses because they have multiple focal points. Multifocal contact lenses are typically designed for constant viewing through the center of the lens, but some designs do incorporate a shift in lens position to view through the ...
Multifocal lens may refer to: Progressive lens, used in eyeglasses; Multifocal intraocular lens; Multifocal diffractive lens, a diffractive optical element used with ...
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