High plus treatment zone lens design and method for preventing and/or slowing myopia progression
Contact lenses incorporate high plus or add power profiles that at least one of slow, retard or preventing myopia progression and minimize halo effect. The lens includes a center zone with a negative power for myopic vision correction; and at least one treatment zone surrounding the center zone, the at least one treatment zone having a power profile that increases from an outer margin of the center zone to a positive power within the at least one treatment zone of greater than +5.00 D.
1. An ophthalmic lens for at least one of slowing, retarding or preventing myopia progression in a patient, the ophthalmic lens comprising:
a treatment zone with a negative dioptric power adapted to correct myopic vision of said patient; and
at least one enhanced treatment zone having an ADD power relative to said negative dioptric power of said treatment zone, wherein said ADD power is between +5 D and +15 D,
wherein the at least one enhanced treatment zone is positioned at a center of said ophthalmic lens and extends to a radius of about 0.7 mm from said center.
2. The ophthalmic lens according to claim 1 , wherein the ADD power within said enhanced treatment zone is between +10 D and +15 D.
3. The ophthalmic lens according to claim 1 , wherein the ADD power within said enhanced treatment zone is a stepped increase in add power.
4. The ophthalmic lens according to claim 1 , further comprising a second enhanced treatment zone having an ADD power relative to said negative dioptric power of said treatment zone.
5. The ophthalmic lens according to claim 1 , wherein said enhanced treatment zone has a radius of 0.75 mm.