Posterior chamber phakic intraocular lens

Details Posterior chamber phakic intraocular lens Posterior chamber phakic intraocular lens

A - Human Necessities

61

F

A61F 2/16 (2006.01)

Patent

CA 2545991

A phakic intraocular lens includes a body having a flat anterior-facing surface and a curved posterior-facing surface that defines the optical power of the lens. The lens allows fluid to flow between the phakic lens and the iris and between the phakic lens and the natural lens. An enlarged outer rim helps maintain the position of the lens. Some embodiments are provided with openings, channels, or both at the circumferential edge of the flat anterior- facing surface or the lens body to help prevent the flat surface of the lens from sealing against the iris.

Une lentille intraoculaire phakique comprend un corps présentant une surface plate de face antérieure et une surface courbe de face postérieure qui définit la puissance optique de la lentille. La lentille permet au fluide de s'écouler entre la lentille phakique et l'iris et entre la lentille phakique et la lentille naturelle. Un bord externe élargi facilite le maintien de la position de la lentille. Certaines formes de réalisation sont prévues avec des ouvertures et/ou des passages situés au niveau du bord circonférentiel de la surface plate de face antérieure ou du corps de la lentille pour empêcher la surface plate de la lentille de se coller contre l'iris.

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