Intraocular lens that improves overall vision where there is a local loss of retinal function

An intraocular lens (IOL) configured to improve vision in a patient's eye where there is a loss of retinal function, the intraocular lens comprising:

• a redirection element configured to redirect incident light along a deflected optical axis that is oriented at an oblique angle with respect to a natural optical axis of the eye that passes through the fovea and which corresponds to a central location of the retina, wherein the deflected optical axis intersects the retina of the patient at a preferred retinal location (PRL) that is away from the fovea of the patient and away from one or more locations of the retina that correspond to central vision,
• wherein the redirection element comprises a surface with a slope profile and wherein the redirection element is configured to:
• redirects incident light along the deflected optical axis;
• focuses the incident light at the preferred retinal location to provide a greater visual acuity and/or greater contrast sensitivity to the patient as compared to visual acuity and/or contrast sensitivity corresponding to focusing the incident light on the central location of the retina,
• wherein the redirection element further comprises a plurality of zones, each zone having a different, constant slope profile
• wherein each respective, different slope profile of the plurality of zones is configured to redirect and focus the incoming rays on the preferred retinal location
• wherein a posterior surface and an anterior surface of the intraocular lens are aspheric,
• and wherein the posterior surface and the anterior surface are configured to reduce astigmatism in the focused image produced at the preferred retinal location.