Full-focus depth-of-field contact lenses having the advantage of reducing the tight contraction of the ciliary muscle for a long time to effectively relieve the eye pressure and correct the symptoms of the presbyopia

Disclosed is a pair of continuous zooming contact lenses, including an optical zone with a diameter of 0.5mm to 6mm formed with an imaginary central optical axis as a center of a circle, wherein a diopter of the optical zone changes continuously from the central optical axis to an outer circular are...

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Bibliographic Details
Main Author XIAO, XU-GUI
Format Patent
LanguageChinese
English
Published 01.11.2022
Subjects
CONTACT LENSES
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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Summary:Disclosed is a pair of continuous zooming contact lenses, including an optical zone with a diameter of 0.5mm to 6mm formed with an imaginary central optical axis as a center of a circle, wherein a diopter of the optical zone changes continuously from the central optical axis to an outer circular area, a first diopter of the optical zone forms a corresponding first focal length, a second diopter of the optical zone forms a corresponding second focal length, a difference between the first focal length and the second focal length is a depth-of-field range, and the quality of an image formed within the depth-of-field range is better than the quality of an image formed outside the depth-of-field range. This invention has the advantage of reducing the tight contraction of the ciliary muscle for a long time to effectively relieve the eye pressure and correct the symptoms of the presbyopia.
Bibliography:Application Number: TW202110115589