There is described a medical device for management of the axial length growth of an eye of a subject. The device comprises a central region having a first power, a transition region surrounding the central region, and a peripheral region surrounding the transition region and having a second power. The transition region has a width at most equal to 1.5 mm. The second power is chosen based on the first power to achieve a target net power, the target net power being the addition of the first power and the second power. The surface area of the central and peripheral regions is chosen as a function of the surface area of the pupil of the eye. Furthermore, the curve of power within the transition region is steep between the first power and the second power so that the transition region generates no optically usable power.

Systems and methods are provided for improving overall vision in patients suffering from a loss of vision in a portion of the retina (e.g., loss of central vision) by providing a piggyback lens which in combination with the cornea and an existing lens in the patient's eye redirects and/or focuses light incident on the eye at oblique angles onto a peripheral retinal location. The piggyback lens can include a redirection element (e.g., a prism, a diffractive element, or an optical component with a decentered GRIN profile) configured to direct incident light along a deflected optical axis and to focus an image at a location on the peripheral retina. Optical properties of the piggyback lens can be configured to improve or reduce peripheral errors at the location on the peripheral retina. One or more surfaces of the piggyback lens can be a toric surface, a higher order aspheric surface, an aspheric Zernike surface or a Biconic Zernike surface to reduce optical errors in an image produced at a peripheral retinal location by light incident at oblique angles.

An apparatus includes an intraocular pseudophakic contact lens having an optical lens and haptics extending radially from the optical lens and configured to be inserted under an anterior leaflet of a capsular wall in an eye in order to capture and confine the haptics under the anterior leaflet. Anterior surfaces of the haptics include capsular wall-engaging surfaces configured to contact an inner capsular wall surface at the anterior leaflet, where the capsular wall-engaging surfaces are configured to promote confinement, capture, or attachment of the haptics. Posterior surfaces of the haptics include ridges configured to capture at least one edge of an artificial intraocular lens in order to secure the intraocular pseudophakic contact lens to the artificial intraocular lens.

A lens device comprises a base lens formed with a plurality of diffractive zones, each having a negative diffractive subzone and a positive diffractive subzone. The negative and the positive diffractive subzones are optionally and preferably arranged alternately. Each diffractive subzone typically has a constant-sign curvature along a radial direction of the base lens.

Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.

Methods for treating presbyopia in a patient's eye involve inducing spherical aberration in a central area of the pupil. In embodiments, refractive properties of an eye are measured to obtain a baseline refractive correction. A lens for wearing on the eye is provided to create spherical aberration or a distribution of spherical aberrations beyond the baseline refractive correction in the central area of the pupil. The central area of the pupil has a diameter of between 1.5 mm and 4.0 mm and has negligible spherical aberration without the treatment.

A filling apparatus for filling a lens device with a volume of optical liquid including a dispensing system, a venting system having a vacuum pump and a vacuum chamber, a measurement system, and a lens device holding system. The dispensing system includes a source of optical liquid, a positive displacement pump, and a filling needle having a lumen in fluid communication with the source of optical liquid. The filling needle is configured to penetrate an injection zone of the lens device for filling an internal chamber of the lens device. The measurement system is configured to measure a lens zone of the lens device. The lens device holding system includes a lens fixture for maintaining a position of the lens device relative to the filling needle and the measurement system. Related systems, devices, and methods are provided.

The present disclosure relates to devices, systems, and methods for improving or optimizing peripheral vision. In particular, methods are disclosed which include utilizing particular characteristics of the retina in improving or optimizing peripheral vision. Additionally, various IOL designs, as well as IOL implantation locations, are disclosed which improve or optimize peripheral vision.

Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.

A prosthetic capsular device configured to be inserted in an eye after removal of a lens, in some embodiments, can comprise a housing structure comprising capable of containing an intraocular device and an equiconvex refractive surface. The housing structure can comprise an anterior portion comprising an anterior opening, a posterior portion comprising a posterior opening, and a continuous lateral portion between the anterior portion and the posterior portion.