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US 5,522,891 AGranted
Intraocular lens
OwnerDieter W. Klaasinventor
Life of this patent
Estimating the term…
Abstract
An intraocular lens with an accommodation device which consists of a lens part 1, which can be shifted when the optical axis 2 is placed at an incline with respect to the force of gravitation, where the refractive power of the lens is increased by the shift of the lens part 1 when the optical axis is at an incline
Claims10
An intraocular lens including a device for accommodation, for implanting in an eye, comprising:
- an artificial bag which prevents shrinkage of a natural capsule bag of the eye for implanting in the natural capsule bag of the eye;
- a lens part suspended in the artificial bag by a haptic system, the lens part being movably guided along its optical axis by elasticity of the haptic system;
- wherein when the optical axis of the lens part is slanted downward from a horizontal level, the haptic system is elastically expanded and the lens part is shifted by force of gravity along the optical axis to increase the refractive index of the intraocular lens and when the optical axis is again in a horizontal position the lens part is moved back to an initial position thereof by the elasticity of the haptic system.
Dependencies are inferred from the claim text.