FIELD: medicine.
SUBSTANCE: system represents a lens and a series of lenses wherein optical force is distributed to provide positive addidation in a near sight region which is not so much as that one usually required for near sight accommodation, at the same time providing a negative spherical aberration in a peripheral optical region. Dynamic eye factors of the patient are combined with positive addidation provided by a central optical region of the lens, and effective addidation provided by negative spherical aberration provided by the peripheral optical region of the lens for ensuring minimally visible degree of fogging preset for maximal increase of patient's eye focus depth.
EFFECT: creation of the lens and the series of lenses for treating presbyopia and pre-presbyopia not deteriorating intermediate and far vision of the patient
22 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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