A probe tip assembly includes an optical fiber for channeling light energy and a straightening tube circumscribing at least a portion of the optical fiber. The straightening tube is moveable between a first position and a second position. The tip assembly also includes a guiding member circumscribing the optical fiber and the straightening tube. The guiding member includes a curvable portion configurable between a pre-formed curved state and a straightened state, wherein, as the straightening tube is retracted from the first position to the second position, the guiding member transitions from its straightened state to its pre-formed curved state. An external surface of the straightening tube contacts an internal surface of the guiding member when the straightening tube is in the first position and the guiding member is in the straightened state.

A probe tip assembly includes an optical fiber for channeling light energy and a straightening tube circumscribing at least a portion of the optical fiber. The straightening tube is moveable between a first position and a second position. The tip assembly also includes a guiding member circumscribing the optical fiber and the straightening tube. The guiding member includes a curvable portion configurable between a pre-formed curved state and a straightened state, wherein, as the straightening tube is retracted from the first position to the second position, the guiding member transitions from its straightened state to its pre-formed curved state. An external surface of the straightening tube contacts an internal surface of the guiding member when the straightening tube is in the first position and the guiding member is in the straightened state.

Techniques for lens design and evaluation involve configuring a rule comprising one of a “with the rule” and “against the rule”, configuring a cylinder comprising one of a “positive cylinder” and a “negative cylinder”, and utilizing the rule and the cylinder in one or both of a residual astigmatism metric algorithm and spherical equivalent metric algorithm to generate a discrete metric values each corresponding to ranges of residual refractive error.

Systems and methods for improving vision of a subject implanted with an intraocular lens (IOL) that has a non-zero residual spherical error that requires an estimated diffractive power addition in the IOL. In some embodiments, a plurality of laser pulses are applied to the IOL, the laser pulses being configured to produce, by refractive index writing on the IOL, the estimated diffractive power addition to correct for the residual spherical error.

For the purposes of working on eye tissue, an ophthalmological apparatus comprises a laser source that is configured to produce a pulsed laser beam, a focusing optical unit that is configured to focus the pulsed laser beam into the eye tissue, a scanner system for deflecting the pulsed laser beam onto work target points in the eye tissue, and a measurement system for optically capturing structures in the eye tissue. A circuit controls the measurement system in such a way that the latter captures a cut first outer face of a lenticule to be cut. The circuit controls the scanner system in such a way that the latter guides the pulsed laser beam onto work target points on a second outer face, positioned in relation to the captured first outer face, of the lenticule to be cut, in order to cut the second outer face of the lenticule.

An ultraviolet laser-based (UVL) laser vision correction (LVC) system, a contact interface and a contact interface system for such a UVL-LVC system. The invention facilitates a coupling and affixation between the patient's eye and the UVL-LVC system by application of a contact interface for the purposes of preventing eye movements when using UVL-LVC systems. The invention includes a UVL-LVC system with a base unit and an application arm which has a contact interface adapter on an application part of the application arm, to which a contact interface is affixable, the contact interface being usable to be to affix a patient's eye to the UVL-LVC system. The contact interface may have a conical wall and a suction ring but not a lens element, and optionally has an access opening or a corresponding contact interface system made of a contact interface adapter and a contact interface.

A method and system perform an ophthalmic procedure on an eye having an optical path from the lens to the retina. An image of at least part of the eye is received in a data processing unit. The image includes the optical path. The data processing unit determines keep out zone(s) and identifies undesirable feature(s) based on the image. The keep out zone(s) include the retina. The data processing unit also selects one of the undesirable feature(s) for removal. At least part of the undesirable feature is outside of the keep out zone(s). Confirmation for removal of the undesirable feature is received in the data processing unit. In response to receiving the confirmation, a control unit controls a laser to perform laser removal the at least the portion of the undesirable feature without targeting any portion of the keep out zone(s).

A method and system perform an ophthalmic procedure on an eye having an optical path from the lens to the retina. An image of at least part of the eye is received in a data processing unit. The image includes the optical path. The data processing unit determines keep out zone(s) and identifies undesirable feature(s) based on the image. The keep out zone(s) include the retina. The data processing unit also selects one of the undesirable feature(s) for removal. At least part of the undesirable feature is outside of the keep out zone(s). Confirmation for removal of the undesirable feature is received in the data processing unit. In response to receiving the confirmation, a control unit controls a laser to perform laser removal the at least the portion of the undesirable feature without targeting any portion of the keep out zone(s).

In some examples, a laser-based ophthalmological surgical system (hereinafter “system”) includes a therapeutic radiation source configured to emit therapeutic radiation at a first intensity during a therapeutic portion and to emit probe radiation with a second intensity which is less than the first intensity during a probe portion. The system may also include one or more optical elements configured to direct the therapeutic portion and the probe portion into an eye of a patient and to collect reflected radiation from the eye of the patient. The reflected radiation may be indicative of dynamics of microbubbles in the cells of the eye of the patient.

A virtual aperture integrated into an intraocular lens is disclosed. Optical rays which intersect the virtual aperture are widely scattered across the retina causing the light to be virtually prevented from reaching detectable levels on the retina. The use of the virtual aperture helps remove monochromatic and chromatic aberrations yielding high-definition retinal images. For a given definition of acceptable vision, the depth of field is increased over a larger diameter optical zone. In addition, thinner intraocular lenses can be produced since the optical zone can have a smaller diameter. This in turn allows smaller corneal incisions and easier implantation surgery.