A lens design and method for preventing or slowing the...

G - Physics – 02 – C

Patent

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G02C 7/04 (2006.01)

Patent

CA 2731330

A lens is provided that is capable of preventing or slowing the progression of myopia when worn by a person The lens has a power profile that reduces on-axis and off-axis hyperopic defocus created by the optics of the eye by creating on-axis and off-axis myopic defocus The on-axis and off-axis myopic defocus is created by providing light rays that pass through a central vision region of the optical portion and light rays that pass through a peripheral region of the optical portion an increase m positive (plus) power The overall effect is to prevent or slow the progression of myopia without any perceptible degradation in the person's central vision.

L'invention porte sur un verre qui est capable d'empêcher ou de ralentir la progression de la myopie lorsqu'il est porté par une personne. Le verre a un profil de puissance qui réduit la défocalisation hypermétrope sur l'axe et hors de l'axe créée par l'optique de l'il par la création d'une défocalisation de myopie sur l'axe et hors axe. La défocalisation de myopie sur l'axe et hors axe est créée par la fourniture de rayons lumineux qui passent à travers une région de vision centrale de la partie optique et de rayons lumineux qui passent à travers une région périphérique de la partie optique en fournissant une augmentation de la puissance positive (plus). L'effet global est d'empêcher ou de ralentir la progression de la myopie sans aucune dégradation perceptible de la vision centrale de la personne.

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