摘要:
Disclosed herein is an implantable accommodative IOL device for insertion into an eye of a patient, comprising an active region and a passive region. The active region has a first thickness and first refractive index, and the active region comprises an electrically responsive optical lens having variable optical power. The passive region is disposed at a periphery of the active region, and the passive region has a second thickness and a second refractive index. The second refractive index is different than the first refractive index. Thus, the light beams passing through the active and passive regions have a phase difference, thereby providing an extended depth of field.
摘要:
An electronic device can comprise a first electronic module; a second electronic module; and a hermetic electric interconnect to hermetically couple them, The hermetic electric interconnect can comprise a bottom metal layer; a bottom insulating layer, deposited on the bottom metal layer to insulate the bottom metal layer; an interconnect metal layer, deposited on the bottom insulating layer, and deposited to form a bottom sealing ring; and patterned to form electrical connections between contact pads, and to form a middle sealing ring: a patterned top insulating layer, deposited on the interconnect metal layer to insulate the interconnect metal layer; and patterned to form feedthrough holes; and a top metal layer, deposited on the top insulating layer to start forming contacts by filling the feedthrough holes; and patterned to complete forming contacts through the feedthrough holes, to form a separate barrier layer, and to complete forming the top sealing ring.
摘要:
Artificial lenses and methods for optimizing vision in an eye of a patient comprising the steps of determining a target optical configuration including the optimum defocus and aberrations that the patients' eye should have in order to match or approximate the original optical configuration of the patient; determining the refractive change of the patient's eye required to achieve the optical configuration best corresponding to target optical configuration for the patient; and implementing the selected refractive change to achieve the target optical configuration.
摘要:
Mittel zur Steuerung der Akkommodationsbedarfserfassung in einem ophthalmischen technischen System (OTS) (6), umfassend mindestens einen Sensor (1) zur Erfassung, einer körpereigenen Signalfolge oder einer Umfeldsignalfolge und Wandlung dieser in Messsignale (3) sowie mindestens eine Erfassungseinheit (4) zur Wandlung der Messsignale (3) in ein Steuersignal (5), das die Akkommodationsbedarfserfassung beeinflusst. Die Aufgabe besteht darin, diese Mittel so zu gestalten, dass eine signifikante Energieeinsparung eines künstlichen Akkommodationssystems (oder OTS) ohne eine nennenswerte Einschränkung des Nutzers ermöglicht oder der Nutzerkomfort gesteigert wird. Die Aufgabe wird dadurch gelöst, dass die Erfassungseinheit (4) eine Signalerkennung aufweist, die die Messsignale (3) mit Referenzsignalbandbreite vergleicht und bei einer Überdeckung der Messsignale durch eine vorgegebene Referenzsignalbandbreite das Steuersignal (5) erzeugt.
摘要:
A patient screening apparatus identifies candidates suitable for receiving accommodative implantable ophthalmic devices, such as dynamic intraocular lenses, based on pupil measurements under different viewing conditions. A pupillometer measures pupil size (pupil diameter or pupil area) and changes in pupil size as a function of ambient light level and/or object distance. For instance, the pupillometer may determine how much the pupil's size changes when the subject transitions from sustained viewing of a distant target to sustained viewing of a near target. These measurements may be used to determine variations in pupil response, including the standard deviation and/or median absolute deviation in pupil size under a given viewing condition, and ratios of pupil sizes and variances in pupil size. The apparatus uses these metrics to estimate whether a patient is likely to benefit from an accommodative implantable ophthalmic device. It can also use them to tune an implantable ophthalmic device.
摘要:
Soft hydrophobic acrylic materials with improved resistance to fluid diffusion and suitable mechanical properties that allow deformation upon application of force are disclosed. The acrylic materials are particularly suitable for use in fluid-based accommodating intraocular lenses and comprises combination of a perfluoro-substituted alkyl (meth)acrylate and an alkyl (meth)acrylate, and a cross-linking agent.
摘要:
The lens geometry and power of an intraocular lens is optimized to provide both distance and near vision correction for a patient. The optimization may be based on one or more measured accommodation-related parameters and one or more estimated accommodation-related parameters. An accommodative amplitude may be predicted based on the measured and estimated accommodation-related parameters, and the optimized the intraocular lens geometry and power established based thereon.
摘要:
An ophthalmic multifocal switchable lens includes a deformable element manifesting elevated strain with a formable surface of a multifocal surface shape to provide far and near vision. A transparent chamber is filled with optical matching fluid adjacent to the side of the deformable element opposite to the formable surface. The optical matching fluid has a refractive index that matches a refractive index of the deformable element material. A holding chamber is also filled with the optical matching fluid and connected with the transparent chamber with a means for preventing the optical fluid from being transported from the holding chamber to the transparent chamber which would reduce a strain of the deformable element. A split of light between far and near vision of the multifocal switchable lens changes upon a removal of the means to allow a flow of the optical matching fluid into the transparent chamber.
摘要:
An implantable intraocular lens and methods of manufacturing them provide a target degree of optical accommodation. In various embodiments, the lens includes at least one internal optic, an outer shell for enclosing at least a portion of the internal optic, and a fluid at least partially filling the outer shell.
摘要:
Embodiments of the invention relate to an intraocular lens system having a plurality of haptics for use with an optic. In general, the haptics are adapted to move independently in response to forces associated with a ciliary muscle and/or zonules of an eye when implanted. The optic may be releasably secured to the system using, for example, a plurality of optic securing arms. Alternatively, the optic may be fused to the haptics, which may project radially outward from the optic. A restraining arm may be included to limit movement of the haptics during accommodation and/or disaccommodation. Clamping members may be included for securing the system to a capsular bag of the eye. Methods of implanting the intraocular lens system into the eye are also described.