Patents Assigned to Pharmacia & Upjohn Groningen BV
  • Patent number: 5968095
    Abstract: A method of preoperatively selecting an intraocular lens to be implanted into an eye to postoperatively render the eye emmetropic or ametropic with a desired postoperative refraction comprises determining the location of the lens haptic plane of the eye, the corneal power of the eye and the axial length of the eye, choosing the desired postoperative refraction and assuming a lens to be implanted, the lens having a known power and geometry, including an offset between the lens haptic plane and an anterior vertex of the lens as if it was in its implanted state. With these parameters and refractive indices of the ocular fluids, a calculation is made to determine whether or not, postoperatively, focus will fall on the retina of the eye. If, from the calculation, it is determined that focus will not fall on the retina of the eye, another lens with a different power and/or geometry is assumed to be implanted and the calculation is repeated until the focus is calculated to fall on the retina of the eye.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: October 19, 1999
    Assignee: Pharmacia & Upjohn Groningen BV
    Inventor: Sverker Norrby
  • Patent number: 5821306
    Abstract: An intraocular lens manufactured from a homogeneous polymer blend, comprising about 70-95 weight percent of a first polymer and about 5-30 weight percent of a second polymer, wherein the first polymer comprises a poly(phenylethylacrylate) and the second polymer comprises a poly(phenylethylmethacrylate).
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: October 13, 1998
    Assignee: Pharmacia & Upjohn Groningen BV
    Inventor: Kenn Hodd