Patent · US Active

High plus treatment zone lens design and method for preventing and/or slowing myopia progression

US10823980B2 · kind B2 · utility

1Cited by
10References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 24, 2019
Grant dateNov 3, 2020
Priority date
Expiry dateMay 24, 2039

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02C2202/24
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.