METHOD OF FITTING A MONOFOCAL OPHTHALMIC LENS Russian patent published in 2022 - IPC G02C7/02 

FIELD: ophthalmology.

SUBSTANCE: method of selecting a monofocal ophthalmic lens includes a step for providing prescription data on the wearer, a step for providing wearing data, step of selecting a monofocal ophthalmic lens that provides optical power according to the recipe in at least a first viewing direction when looking at a first distance and in a second viewing direction when looking at a second distance, wherein the first and second distances are different, and the first and second viewing directions are different. Lens is selected so that for any direction of sight contained in an elliptical cone with half of the major axis at angle of 8 degrees and half of the minor axis at angle of 4 degrees, orientation of the major axis is horizontal under standard wearing conditions, the elliptical cone is centered in the second viewing direction, difference of optical power measured in any specified direction of sight, and optical power according to the recipe was equal to 0.15 diopters or less.

EFFECT: providing a low level of aberrations both when looking at long distances and when looking at close and/or intermediate distances.

14 cl, 12 dwg, 3 tbl