Intraocular lens providing accomodation
OwnerDana F. Turleyinventor
Life of this patent
Estimating the term…
Abstract
An intraocular lens that provides accommodation in direct response to contraction and relaxation of the ciliary body. The lens includes a first component having fixed refractive power and a second component having varying refractive power, the components being relatively movable towards each other as the ciliary body contracts to increase the total refractive power of the lens.
Claims14
An intraocular lens for mounting within the ciliary body of a host eye and capable of emulating the natural process of accommodation comprising first optical means having a first refractive power, second optical means having a variable refractive power, said first and second optical means being connected together for relative movement along the principal axis of lens, said first optical means including a surface of predetermined configuration engageable by said second optical means upon relative movement of said first and second optical means towards each other in response to contraction of the ciliary body to increase the refractive power of the lens.
An intraocular lens for mounting within the ciliary body of a host eye comprising first optical means having a substantially fixed refractive power, second optical means including a flexible optical means providing a variable refractive power, said first and second optical means being connected together in substantial coaxial alignment for relative movement along the principal axis of the lens, said first optical means including a surface of predetermined configuration engageable by said flexible optical means upon relative movement of said first and second optical means towards each other in direct response to contraction of the ciliary body, the refractive power of said flexible optical means gradually increasing as it increasingly conforms to said surface, whereby said second optical means provides a continuously variable range of refractive power during the accommodation process.
Dependencies are inferred from the claim text.