Intraocular optical system

Details Intraocular optical system Intraocular optical system

A - Human Necessities

61

F

3/112

A61F 2/16 (2006.01)

Patent

CA 1325699

ABSTRACT OF THE DISCLOSURE: An intraocular optical system consisting of a hollow elastically deformable insert, following the shape of capsula lentis at least in main lines, leaning against the inner wall of capsula lentis and keeping it moderately tensioned, which insert consists of a front element and rear element and an elastic element placed between them, and contains one to four lenses placed in the main axis of eye. At least one of these lenses is connected with the insert in such a way, that it moves axially at the contraction and release of accommodation muscles and thus changes its position between the retina and cornea. The insert is made from biocompatible materials as are silicon elastomers, hydrogels, advantageously elastic and with the shape memory, for example, from partially dried hydrogels with the hydrophilized surface, or from material with the glass- transition temperature Tg from -5°C to 45°C or with Tg adjusted to meet this requirement, for example, by swelling hydrogels into a non-equilibrium state. The insert deformed into a rod-like form with the diameter less than 3 mm can be introduced into an eye through a very small incision.

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