Multi-piece accommodating intraocular lenses and methods for making and using same
An accommodating intraocular lens (AIOL) for implantation within a capsular bag of a patient's eye comprises first and second components coupled together to define an inner fluid chamber and an outer fluid reservoir. The inner region of the AIOL provides optical power with one or more of the shaped fluid within the inner fluid chamber or the shape of the first or second components. The fluid reservoir comprises a bellows region with fold(s) extending circumferentially around an optical axis of the eye. The bellows engages the lens capsule, and a compliant fold region between the inner and outer bellows portions allows the profile of the AIOL to deflect when the eye accommodates for near vision. Fluid transfers between the inner fluid chamber and the outer fluid reservoir to provide optical power changes. A third lens component coupled to the first or second component provides additional optical power.
1. A method of implementing an accommodating intraocular lens system, comprising:
implanting an accommodating structure into a native eye capsule, wherein the accommodating structure has a first optical component, a second optical component posterior of the first optical component, an inner fluid chamber between the first and second optical components, and an outer fluid reservoir fluidically coupled to the inner fluid chamber;
coupling a fixed lens to the accommodating structure after implanting the accommodating structure in the native eye capsule.
2. The method of claim 1 wherein the fixed lens comprises a first fixed lens, and the method further comprises (a) detaching the first fixed lens from the accommodating structure and (b) attaching a second fixed lens to the accommodating structure, and wherein the second fixed lens has a different optical power than the first fixed lens.
3. The method of claim 1 wherein the fixed lens comprises an optical portion and a skirt projecting posteriorly from the optical portion such that an aqueous chamber is formed between the optical portion of the fixed lens and the first optical component of the accommodating structure when the fixed lens is coupled to the accommodating structure.
4. The method of claim 1 wherein the first optical component is part of an anterior component and the second optical component is part of a posterior component, and the method comprises coupling and fluidically sealing the anterior and posterior components together before implanting the accommodating structure.
5. The method of claim 4 wherein the anterior and posterior components are coupled and fluidically sealed together in a dry state, and further comprising hydrating the coupled and fluidically sealed anterior and posterior components before implanting the accommodating structure.
6. The method of claim 1 wherein the accommodating structure has an index mark and the method further comprises rotating the fixed lens based on the index mark on the accommodating structure.
7. The method of claim 6 wherein the fixed lens has a physical feature and the process of rotating the fixed lens comprises registering the physical feature of the fixed lens with respect to the index mark on the accommodating structure.
8. The method of claim 1 wherein the fixed lens comprises a first fixed lens, and wherein the method further comprises:
assessing whether the implanted accommodating structure with the first fixed lens coupled to the accommodating structure in the eye provides a target level of accommodation; and
replacing the first fixed lens with a second fixed lens having a different base power when the assessed accommodation is different than the target level of accommodation.