Contact lens and method for prevention of myopia progression
AssigneeMyopiaok Limited
InventorsMartin Loertscher, John R. Phillips
Life of this patent
Estimating the term…
Abstract
A method of slowing the progression of myopia in a person, comprises applying to the eye of the person a contact lens or lenses to mold the surface of the cornea. On removal of the lens, the shape of the corneal surface includes a vision correction area for correcting the myopic vision of the person, and a myopic defocus area having a more positive power and located within the pupil area, to simultaneously present a controlled myopic defocus to the retina both when viewing in the distance and also when viewing at near, without the lens in place on the cornea. Contact lenses and their use are also claimed.
Claims18
A method of treating or slowing the progression of myopia in a person, comprising:
- applying to the eye or eyes of the person or prescribing for the person, a contact lens or lenses,
- each contact lens including a posterior surface contoured to reshape the anterior corneal surface of the eye to which the lens is applied,
- the posterior surface being configured to reshape the corneal surface such that the cornea includes a vision correction area for correcting the myopic vision of the person, and a vision treatment area which presents a myopic defocused image to the central retina of the person, to thereby simultaneously present the eye or eyes of the person a clear retinal image and retinal myopic defocus when the lens or lenses are not being worn.
The method according to claim further comprising applying the contact lens or lenses periodically to reshape the corneal surface over time.
The method according to claim further comprising applying the contact lens or lenses repetitively for a selected time period.
A contact lens comprising a posterior surface contoured to reshape the anterior corneal surface of the eye to which the lens is applied, the posterior surface being configured to reshape the corneal surface such that the cornea includes a vision correction area for correcting the myopic vision of the person, and a vision treatment area which presents a myopic defocused image to the central retina of the person, to thereby simultaneously present the eye or eyes of the person a clear retinal image and retinal myopic defocus when the lens or lenses are not being worn.
Dependencies are inferred from the claim text.