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Mezhotraslevoi Nauchno-tekhnichesky Komplex 'mikrokhirurgia Glaza'

Viktor Konstantinovich Zuev

Svyatoslav N Fedorov

Bulat M Aznabaev

An intraocular lens includes a optical body including a posterior concave rface with a first radius of curvature, a periphery and a central, axially aligned opening that enhances liquid circulation in the eye, with the ratio of the height of the optical body to the overall height of the lens being between about 0.25 to about 0.5; a positioning element connected to the optical body periphery and including a periphery and a posterior concave surface with a second radius of curvature greater than the first radius of curvature, a ratio of the first to second radii of curvature being between about 0.31 to about 0.42; and end elements connected with opposite ends of the positioning element, each end element including a proximal end connected with the positioning element periphery, a distal end, a posterior concave surface forming a smooth continuation of the positioning element posterior concave surface and having a curvature identical therewith, and an anterior surface on an opposite side of the end element, the end element anterior surface having a substantially linear slope such that the end element decreases in thickness from the proximal end to the distal end, and the intraocular lens having an outer dimension defined by the distal ends of the end elements which prevents anchoring of the intraocular lens in an eye and thereby permits floating of the intraocular lens in the eye.

Corrective intraocular lens

An optical body, a positioning element, and a supporting element are shaped as an integral unit and have the same radius of curvature that provides for full adherence of the integral unit to an intact natural lens. The distance between the diametrically opposite portions of the supporting element is at least equal to the distance between Zinn's zonules on which the corrective lens rests.

A through corneal prosthesis is proposed which comprises a bearing member to be introduced between the corneal layers and a bushing with a threaded hole rigidly mounted on the bearing member, the threaded hole threadedly receiving a removable optical cylinder. For the period of implantation of the bearing member, instead of the optical cylinder a temporary removable plug is screwed in the bushing, the height of the bushing and the plug not exceeding the thickness of the cornea, so that the bearing member of the prosthesis is implanted without requiring perforation of the corneal layers.

Growing community of inventors

Moscow, Russia

Viktor Konstantinovich Zuev