Importance

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Abstract

An intraocular lens structure for implantation in an eye of a patient has at least two intraocular lenses aligned along a common optical axis. Each of the intraocular lenses is provided with an optical compensation section adapted to correct an astigmatism with a linear orientation. A support retains each of the lenses for rotation about the common optical axis relative to one another when in an implanted state. The support may include a common haptic, or a separate haptic for respectively mounting each of the lenses together with a common ring for mounting each of the haptics to enable rotation of the lenses relative to one another after implantation. In the latter configuration, the common mounting ring has a pair of parallel grooves along an inner edge thereof for mounting the respective haptics therein for rotation of the lenses relative to one another. The lenses are provided with markings indicative of a preferred linear orientation thereof relative to one another about the axis when the lens structure is implanted. Each lens is composed of polymethymethacrylate (PMMA), silicone, hydrogel, or collapsible acrylate, and each optical compensation section has an optical cylindrical or torical effect.

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First Claim