Abstract: A biological indicator with variable resistance may be controlled by moving a cap or housing of the biological indicator to cause the size of vents that allow flow of sterilant through the housing to decrease or increase in effective size. An indicator window may show a user the current resistance of the biological indicator, and may also show a readable indicator that may be captured by a scanner to allow a sterilizing cabinet to identify the current resistance. When the level of resistance shown by the readable indicator is not compatible with a sterilization cycle selected by a user, the procedure may be delayed and a notification provided to the user that a problem exists. The readable indicator may be a passive tag with a memory that allows information to be read and written, so that the biological indicator may carry data from one device to another.

Abstract: In an ophthalmic laser procedure, a lenticule is formed in the cornea and extracted from the cornea to accomplish vision correction. The ophthalmic laser system is used to form top and bottom lenticule incisions which intersect each other to form an isolated volume of corneal tissue in between. The volume of tissue includes a lenticular portion having a circular or oval shape and a side tab that protrudes from the peripheral of the lenticular portion. The side tab has a radial dimension between 0.5 and 5 mm and a width between 0.5 and 3 mm in. An entry cut is further formed from the anterior corneal surface to the top or bottom lenticule incisions to provide access to the lenticule. During extraction, the surgeon uses the surgical tool to grab the side tab to extract the lenticule.

Abstract: In an ophthalmic laser procedure, a lenticule is formed in the cornea and extracted from the cornea to accomplish vision correction. The ophthalmic laser system is used to form top and bottom lenticule incisions which intersect each other to form an isolated volume of corneal tissue in between. The volume of tissue includes a lenticular portion having a circular or oval shape and a side tab that protrudes from the peripheral of the lenticular portion. The side tab has a radial dimension between 0.5 and 5 mm and a width between 0.5 and 3 mm in. An entry cut is further formed from the anterior corneal surface to the top or bottom lenticule incisions to provide access to the lenticule. During extraction, the surgeon uses the surgical tool to grab the side tab to extract the lenticule.

Abstract: An ophthalmic laser surgical system uses a confocal detector assembly to continuously detect a confocal signal during laser treatment, and based on the confocal signal, detects in real time a loss of tissue contact with the patient interface (PI) output surface. The detection is partly based on the change of reflectivity at the PI output surface when the optical interface changes from a lens-tissue interface to a lens-air interface. The behavior of the confocal signal upon loss of tissue contact is dependent on the treatment laser scan pattern being performed at the time of tissue contact loss. Thus, different confocal signal analysis algorithms are applied to detect tissue contact loss during different scans, such as the bed cut and side cut for a corneal flap. The real time confocal signal may also be used during eye docking to detect the establishment of tissue contact with the PI output surface.

Abstract: An ophthalmic laser surgical system uses a confocal detector assembly to continuously detect a confocal signal during laser treatment, and based on the confocal signal, detects in real time a loss of tissue contact with the patient interface (PI) output surface. The detection is partly based on the change of reflectivity at the PI output surface when the optical interface changes from a lens-tissue interface to a lens-air interface. The behavior of the confocal signal upon loss of tissue contact is dependent on the treatment laser scan pattern being performed at the time of tissue contact loss. Thus, different confocal signal analysis algorithms are applied to detect tissue contact loss during different scans, such as the bed cut and side cut for a corneal flap. The real time confocal signal may also be used during eye docking to detect the establishment of tissue contact with the PI output surface.

Abstract: In an ophthalmic laser procedure, a lenticule is formed in the cornea and extracted from the cornea to accomplish vision correction. The ophthalmic laser system is used to form top and bottom lenticule incisions which intersect each other to form an isolated volume of corneal tissue in between. The volume of tissue includes a lenticular portion having a circular or oval shape and a side tab that protrudes from the peripheral of the lenticular portion. The side tab has a radial dimension between 0.5 and 5 mm and a width between 0.5 and 3 mm in. An entry cut is further formed from the anterior corneal surface to the top or bottom lenticule incisions to provide access to the lenticule. During extraction, the surgeon uses the surgical tool to grab the side tab to extract the lenticule.

Abstract: A biological indicator with variable resistance may be controlled by moving a cap or housing of the biological indicator to cause the size of vents that allow flow of sterilant through the housing to decrease or increase in effective size. An indicator window may show a user the current resistance of the biological indicator, and may also show a readable indicator that may be captured by a scanner to allow a sterilizing cabinet to identify the current resistance. When the level of resistance shown by the readable indicator is not compatible with a sterilization cycle selected by a user, the procedure may be delayed and a notification provided to the user that a problem exists. The readable indicator may be a passive tag with a memory that allows information to be read and written, so that the biological indicator may carry data from one device to another.

Abstract: A biological indicator with variable resistance may be controlled by moving a cap or housing of the biological indicator to cause the size of vents that allow flow of sterilant through the housing to decrease or increase in effective size. An indicator window may show a user the current resistance of the biological indicator, and may also show a readable indicator that may be captured by a scanner to allow a sterilizing cabinet to identify the current resistance. When the level of resistance shown by the readable indicator is not compatible with a sterilization cycle selected by a user, the procedure may be delayed and a notification provided to the user that a problem exists. The readable indicator may be a passive tag with a memory that allows information to be read and written, so that the biological indicator may carry data from one device to another.

Abstract: A biological indicator with variable resistance may be controlled by moving a cap or housing of the biological indicator to cause the size of vents that allow flow of sterilant through the housing to decrease or increase in effective size. An indicator window may show a user the current resistance of the biological indicator, and may also show a readable indicator that may be captured by a scanner to allow a sterilizing cabinet to identify the current resistance. When the level of resistance shown by the readable indicator is not compatible with a sterilization cycle selected by a user, the procedure may be delayed and a notification provided to the user that a problem exists. The readable indicator may be a passive tag with a memory that allows information to be read and written, so that the biological indicator may carry data from one device to another.

Abstract: In an embodiment, an aspheric IOL for use in a pseudophakic ocular system has no inherent spherical aberration. In an embodiment, an aspheric IOL for use in a pseudophakic ocular system has a controlled amount of inherent negative spherical aberration such that the IOL induces no spherical aberration in a converging wavefront from a cornea passing through the lens. An embodiment of the invention is directed to a family of aspheric IOLs made up of any two or more member aspheric IOLs each having different spherical aberration values and different lens shape factors. A lens constant, such as the well known A-constant, is kept constant throughout the family of lenses. An embodiment of the invention is directed to a multi-component accommodating intraocular lens (A-IOL). In a particular embodiment, the A-IOL introduces substantially no residual spherical aberration to a wavefront incident upon and passing through the A-IOL.

Abstract: In an embodiment, an aspheric IOL for use in a pseudophakic ocular system has no inherent spherical aberration. In an embodiment, an aspheric IOL for use in a pseudophakic ocular system has a controlled amount of inherent negative spherical aberration such that the IOL induces no spherical aberration in a converging wavefront from a cornea passing through the lens. An embodiment of the invention is directed to a family of aspheric IOLs made up of any two or more member aspheric IOLs each having different spherical aberration values and different lens shape factors. A lens constant, such as the well known A-constant, is kept constant throughout the family of lenses. An embodiment of the invention is directed to a multi-component accommodating intraocular lens (A-IOL). In a particular embodiment, the A-IOL introduces substantially no residual spherical aberration to a wavefront incident upon and passing through the A-IOL.

Abstract: A thin intraocular lens for inhibiting posterior capsular opacification (PCO) includes an optic having an anterior concave region, a posterior concave region, a sharp edge which extends posteriorly and between the posterior concave region and at least a portion of an outer-most peripheral edge surface.

Abstract: In an embodiment, an aspheric IOL for use in a pseudophakic ocular system has no inherent spherical aberration. An embodiment of the invention is directed to a family of aspheric IOLs in which a lens constant, such as the well known A-constant, is kept constant throughout the family of lenses. An embodiment of the invention is directed to a multi-component accommodating intraocular lens (A-IOL) having substantially no inherent spherical aberration. An embodiment of the invention is directed to a family of member A-IOLs where each member A-IOL has a first (1) surface and a fourth (4) surface characterized by a radius and a conic constant that remain substantially constant over the power rage of the A-IOL family.

Abstract: A toric ophthalmic lens having substantially zero spherical aberration for a first circular aperture having a first diameter and substantially zero spherical aberration for a second circular aperture having a second diameter, the first diameter being at least 4 mm and the second diameter being at least 3 mm, the first diameter being at least 0.5 mm larger than the second diameter. A series of ophthalmic lenses, each lens comprising a same spherical power as the other lenses in the set, and a unique cylindrical power, each lens comprising (i) a first toric surface, and (ii) a second surface, at least one of the first surface and the second surface being aspheric in a meridian, the lens having substantially zero spherical aberration for all circular optical zone diameters less than 4 mm.

Abstract: An ophthalmic lens, comprising an optic including at least one photochromic region having a first chromaticity and a second region of lesser photochromaticity. A method of treating a subject having presbyopia or aniridia comprising applying to the subject's eye an ophthalmic lens comprising an optic including at least one photochromic region having a first chromaticity and a second region of lesser photochromaticity.

Abstract: A thin intraocular lens for inhibiting posterior capsular opacification (PCO) includes an optic having an anterior concave region, a posterior concave region, a sharp edge which extends posteriorly and between the posterior concave region and at least a portion of an outer-most peripheral edge surface.

Abstract: A thin intraocular lens for inhibiting posterior capsular opacification (PCO) includes an optic having a sharp edge which extends posteriorly and between a posterior concave region and an outer-most peripheral edge surface that extends parallel to the optical axis.

Abstract: A multi-element IOL, comprising an anterior lens element comprising a light-adjustable material responsive to light of a first wavelength, and a posterior lens element comprising a light blocker capable of blocking light of the first wavelength, and a method of inserting the multi-element IOL.

Abstract: An IOL, comprising a first diffractive region, and a second diffractive region having a power of a different magnitude than the first diffractive region, the first region adapted to diffract substantially all light at a first selected wavelength projected therethrough into a single order of diffraction, and the second region adapted to diffract substantially all light at a second selected wavelength projected therethrough into a single order of diffraction.

Abstract: An ophthalmic lens, comprising an optic including at least one photochromic region having a first chromaticity and a second region of lesser photochromaticity.