Patent classifications
A61F9/00834
MODULAR INTRAOCULAR LENS DESIGNS AND METHODS
A modular IOL system including intraocular primary and secondary components, which, when combined, form an intraocular optical correction device, wherein the secondary component is placed on the primary component within the perimeter of the capsulorhexis, thus avoiding the need to touch or otherwise manipulate the capsular bag. The secondary component may be manipulated, removed, and/or exchanged for a different secondary component for correction or modification of the optical result, on an intra-operative or post-operative basis, without the need to remove the primary component and without the need to manipulate the capsular bag. The primary component may have haptics extending therefrom for centration in the capsular bag, and the secondary component may exclude haptics, relying instead on attachment to the primary component for stability. Such attachment may include actuatable interlocking members.
Vision correction with laser refractive index changes
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.
SLOTTED OCULAR LENS
An occular lens, such as a laser lysis lens, is provided that is suitable for use in viewing and lysing sutures in ophthalmic procedures. The occular lens includes a lens body having an the eye contacting surface. The eye contacting surface includes a groove or slot configured to aid in localizing and fixating a ligated drainage tube of a drainage implant during ligation/suture removal.
PROCESS MONITORING AND CONTROL DURING LASER-BASED REFRACTIVE INDEX MODIFICATION OF INTRAOCULAR LENSES IN PATIENTS
Methods and related apparatus for real-time process monitoring during laser-based refractive index modification of an intraocular lens. During in situ laser treatment of the IOL to modify the refractive index of the IOL material, a signal from the IOL is measured to determine the processing effect of the refractive index modification, and based on the determination, to adjust the laser system parameters to achieve intended processing result. The signal measured from the IOL may be a fluorescent signal induced by the treatment laser, a fluorescent signal induced by an external illumination source, a temporary photodarkening effect, a color change, or a refractive index change directly measured by phase stabilized OCT.
SYSTEMS AND METHODS FOR VERGENCE MATCHING OF AN INTRAOCULAR LENS WITH REFRACTIVE INDEX WRITING
Systems and methods for improving vision of a subject implanted with an intraocular lens (IOL). In some embodiments, a method for vergence matching includes calculating vergence of a wave after refraction on a surface of an IOL and, based on an estimated curvature, converting an initial phase map into a vergence-matched phase map, such that the initial phase map follows the curved vergence of the wavefront.
VISION CORRECTION WITH LASER REFRACTIVE INDEX CHANGES
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.
PERFORMING LASER VITREOLYSIS ON AN EYE WITH AN INTRAOCULAR LENS
In certain embodiments, an ophthalmic laser system includes a laser device and a computer, where the laser device includes a laser and a phase modulator. The laser device directs a laser beam towards a target in an eye, where an intraocular lens (IOL) is disposed within the eye. The IOL has a phase profile that yields an IOL phase shift of light entering the eye. The laser generates the laser beam. The phase modulator has a phase front that yields a first phase shift of the laser beam that changes to a second phase shift when the laser beam reaches the IOL. The second phase shift is an inverse to the IOL phase shift.
High Speed Tracking of IOL During Refractive Index Modification
During a process of refractive index modification of an intraocular lens (IOL) using an ophthalmic laser system, optical position monitoring of the IOL is performed by a video camera system viewing the top surface of the IOL. Fiducials are incorporated into the IOL at manufacture, or created in-vivo with laser. The monitoring method employs a defined area of interest (AOI) to limit the number of pixels to be analyzed, to achieve adequately high acquisition speed. In one example, the AOI contains 5 camera scan line segments, each line segment having sufficient pixels to create a stable amplitude signature. Successive frames of the AOI are analyzed to detect movement of the fiducial and/or to determine whether the fiducial has been lost.
SYSTEMS AND METHODS FOR CORRECTING PHOTIC PHENOMENON FROM AN INTRAOCULAR LENS AND USING REFRACTIVE INDEX WRITING
Systems and methods for improving vision of a subject implanted with an intraocular lens (IOL). In some embodiments, a method includes determining at least one photic phenomenon experienced by the subject after implantation of the IOL; and applying a plurality of laser pulses to the IOL, the laser pulses being configured to produce, by refractive index writing on the IOL, a phase shift in the IOL to compensate for the photic phenomenon.
MICROFEMTOTOMY METHODS AND SYSTEMS
Methods and systems for performing laser-assisted surgery on an eye form one or more small anchoring capsulotomies in the lens capsule of the eye. The one or more anchoring capsulotomies are configured to accommodate corresponding anchoring features of an intraocular lens and/or to accommodate one or more drug-eluting members. A method for performing laser-assisted eye surgery on an eye having a lens capsule includes forming an anchoring capsulotomy in the lens capsule and coupling an anchoring feature of the intraocular lens with the anchoring capsulotomy. The anchoring capsulotomy is formed by using a laser to incise the lens capsule. The anchoring feature can protrude transverse to a surface of the intraocular lens that interfaces with the lens capsule adjacent to the anchoring capsulotomy.