Abstract: An intraocular lens assembly and method. The assembly comprises an optic disc and an annulus surrounding the optic disc. Hinges connect the optic disc to the annulus to permit anterior and posterior movement of the optic disc relative to the annulus in response to contraction and relaxation of the ciliary muscle so that the eye accommodates to focus on a near object. The method comprises the steps of placing in the posterior chamber an optic disc and an annulus. The annulus surrounds the optic disc and is connected to it by hinges that permit anterior and posterior movement of the optic disc relative to annulus in response to contraction and relaxation of the ciliary muscle whereby said eye accommodates to focus on a near object.

Abstract: An improved method and subconjunctival device for causing the eye to focus on a near object. The device automatically changes the focal length of the eye in response to a changing of the length of the medial rectus muscle or the inferior rectus muscle so that the eye can focus on a near object. The device is powered by a rechargeable battery and includes an electrode for stimulating the ciliary muscle as the length of the medial rectus muscle or the inferior rectus muscle changes.

Abstract: A keratotomy apparatus that comprises a plurality of plates. One of the plates is kept on the eye during the keratotomy. The other plates support corneal thickness sensors and guides that enable both radial and arcuate keratotomy cuts to be made. A keratotomy knife that has cams that cooperate with camming surfaces to guide the keratotomy knife. A keratotomy method comprises the steps of measuring the thickness of the cornea, providing a plurality of keratotomy knife guides, positioning the keratotomy knife guides over the cornea, and making the keratotomy cuts in the cornea.

Abstract: An instrument for surgically removing a lens from the eye comprising a housing that supports electrodes for bipolar cutting and splitting the nucleus of the lens.A method of surgically removing a lens from the eye comprising the steps of inserting an instrument into the eye, cutting a groove in the nucleus of the lens with electrical energy, splitting the nucleus at the groove, and removing the pieces of nucleus from the eye.

Abstract: A one-piece, polymethylmethacrylate (PMMA) posterior chamber intraocular lens (IOL) for reducing posterior capsular opacification (PCO) and optic decentration includes a biconvex optic disc and a single, flexible, generally circular-shaped loop which extends around the periphery of the disc. The loop is radially compressible, i.e., tightens like a spring coil to achieve substantially 360.degree. contact with the peripheral zone of the posterior capsule with the optic disc centered substantially on the visual axis.

Abstract: A system for preventing or treating open angle glaucoma and presbyopia by electrical stimulation of the ciliary muscle of the eye. In one embodiment, a body implantable unit develops an electrical stimulation signal and delivers that signal to the longitudinal fibers of the ciliary muscle, to widen the intertrabecular spaces and thereby facilitate outflow of aqueous fluid from the eye, and/or to the circular fibers of the ciliary muscle to accommodate widening of the lens of the eye. The signal developing portion of the implanted unit may include a receiver which cooperates with an external transmitting member or the signal developing portion may be a self-contained pulse generating unit. In a second embodiment, the entire unit is located outside the body and is mounted in a probe shaped holder.

Abstract: A posterior chamber intra-ocular lens has first and second flexible loops attached thereto. The arcuate distance between the attachments of the loops to the lens is not more than about 90.degree..