FIELD: ophthalmology.
SUBSTANCE: invention is designated to create contact lenses which correct refractive perception of the lenses user with due account for the pupil size and the Stiles-Crawford effect of the first order that enhance the efficiency of the light distribution under all viewing conditions; the above result is secured due to the lens constructing procedure assuring multifocal optical construction with at least two radiosymmetrical optical zones and upscale the multifocal optical construction on the basis of the size of the pupil by means of determination of the effective size of the pupil and regulation of the radius of each optical zone pursuant to the Stiles-Crawford effect for the correction of the sharpness of longsighted vision of the lens user as needed.
EFFECT: enhancement of the efficiency of light distribution under all viewing conditions and enhancement of the efficiency of the sharpness of longsighted vision of lenses users.
9 cl, 2 dwg.
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Authors
Dates
2012-02-10—Published
2007-05-08—Filed