Treating ocular refractive error
AssigneeBrien Holden Vision Institute Limited
InventorsArthur Ho, Padmaja Rajagopal Sankaridurg, Earl Leo Smith, III, Brien Anthony Holden
Life of this patent
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Abstract
A lens for an eye that includes a zone with a first power profile for images received by the retina on the fovea, a zone with a second power profile for images received by the peripheral retina on the nasal side and a zone with a third power profile for images received by the peripheral retina on the temporal side. The first power profile is selected to provide clear or acceptable vision and the second and third power profiles are selected to affect the peripheral image position.
Claims12
A lens for affecting the progression of myopia in an eye, the lens comprising:
- a nasal optic zone and a temporal optic zone for refracting light to be received by the peripheral retina so as to be focused on or in front of the retina, wherein the nasal optic zone and the temporal optic zone have different refractive powers;
- a central optic zone between the nasal and the temporal optic zones, the central optic zone being asymmetrical about a vertical meridian through the lens, so as to extend across horizontal half meridians of the lens to different extents, wherein the vertical and horizontal meridians refer to the orientation of the lens caused by a stabilizing mechanism.
Dependencies are inferred from the claim text.