MULTI-MODE OPERATING OPTIC FOR PRESBYOPIA CORRECTION

摘要

A switchable intraocular lens assembly includes an optic body having a guiding surface, a holding chamber, a blocking channel, and a laser accessible cavity at a portion of the blocking channel. An elastic film is disposed over the guiding surface, wherein the elastic film is sealed at or near the guiding surface periphery forming a transparent chamber between the guiding surface and the elastic film. A laser flowable blocking element has an enlarged head connected to an extension portion, where a length of the extension portion is more than a distance along the blocking channel from the blocking channel opening to the fluidic connection of the transparent chamber. The extension portion of the laser flowable blocking element is disposed inside the blocking channel. An optical fluid is disposed within the holding chamber under a pressure greater or lesser in comparison to a pressure in the transparent chamber.

主权项

1. A switchable intraocular lens assembly configured for implantation in an eye, the assembly comprising:
a) an optic body defining a body thickness between a first surface opposite a second surface, the optic body comprising:
i) at least two supporting members extending from a periphery of the optic body where the at least two supporting members are configured for implant fixation inside the eye;ii) a guiding surface formed in the first surface;iii) an elastic film disposed over the guiding surface forming a transparent chamber between the guiding surface and the elastic film;iv) a holding chamber formed in the body thickness along the first surface and located outside a guiding surface periphery;v) at least one fluid transport channel formed in the optic body fluidically connecting the transparent chamber and the holding chamber;vi) a first hole disposed in the body thickness at one of the first and second surfaces, wherein the first hole is disposed outside the guiding surface periphery, and wherein the first hole is in fluidic communication with the at least one fluid transport channel;vii) a second hole disposed in the body thickness at one of the first and second surfaces, the second hole in fluidic communication with the holding chamber;viii) a blocking channel formed in the body thickness of the optic body, the blocking channel in fluidic communication with the at least one fluid transport channel and the holding chamber, the blocking channel having a blocking channel opening in the optic body at a proximal end of the blocking channel, where the holding chamber is connected at a distal end of the blocking channel, wherein the at least one fluid transport channel is connected to the blocking channel between the proximal and distal ends of the blocking channel;ix) a cavity disposed at the body thickness through a portion of the blocking channel; b) the elastic film disposed over the first hole, the second hole and the holding chamber; wherein the elastic film is sealed at or near the guiding surface periphery forming an enclosed cavity of the transparent chamber and wherein the elastic film is sealed at a periphery of the holding chamber forming an enclosed cavity of the holding chamber; and c) a laser flowable blocking element having an enlarged head connected to an extension portion, where a length of the extension portion is more than a distance along the blocking channel from the blocking channel opening to the connection of the at least one fluid transport channel, wherein the extension portion of the laser flowable blocking element is disposed inside the blocking channel; and d) an optical fluid disposed within the holding chamber.