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US 8,128,223 B2Granted
Methods and therapeutic optical devices for regulation of astigmatism
AssigneeCRT Technology, Inc.
InventorsJerome A. Legerton, William E. Meyers
Life of this patent
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Abstract
In accordance with exemplary embodiments, the present invention provides a therapeutic optical device configured to focus the central retinal image in at least one meridian and focus at least one semi-meridian of the peripheral image field in front of or behind the retina to stimulate eye and/or corneal reshaping to reduce astigmatism. In exemplary embodiments, the device further provides rotational stability.
Claims14
A therapeutic optical device for inducing change in the shape of a meridian of an eye,
- wherein said device is configured to reshape the mid peripheral cornea such that an off-axis image field in said meridian is focused in a direction reshaping is preferred, with reference to the retina;
- wherein said device is configured to vault the mid peripheral cornea;
- and
- wherein said device is configured to focus a central image field on the retina in all meridians.
1 more element
A therapeutic optical device,
- wherein said device is configured to focus a first off-axis image field in a first meridian on or anterior or posterior to the retina;
- wherein said device is configured to focus a second off-axis image field in a second meridian anterior or posterior to said first off-axis image field;
- wherein said device is configured to create a wedge of clearance between said device and the mid peripheral cornea;
- and
- wherein said device is configured to focus a central image field on the retina in at least one meridian.
2 more elements
Dependencies are inferred from the claim text.