Binocular optical treatment for presbyopia

A - Human Necessities – 61 – F

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A61F 9/008 (2006.01)

Patent

CA 2567299

Methods and systems for treaing presbyopia involve ablating a corneal surface (104, 102) of first eye of a patient to enhace the vision of near objects (112) and ablating a second eye of the patient to to enhance the vision of near objects through a peripheral zone of the second eye. The optical power of the first eye is increased in the central zone, while the optical power of the second eye is increased in the peripheral zoe. In the first eye, a peripheral zone is used for distance vision (122). Systems include a laser device and a processor for directing the laser device to ablate the two eyes of the patient.

Des procédés et systèmes servant à traiter la presbytie comprennent l'ablation sur une surface de la cornée d'un premier oeil d'un patient pour renforcer la vision d'objets proches grâce à une zone centrale du premier oeil et l'ablation sur un second oeil du patient pour renforcer la vision d'objets proches grâce à une zone périphérique du second oeil. Le pouvoir optique du premier oeil est accru dans la zone centrale, alors que le pouvoir optique du second oeil est accru dans la zone périphérique. Dans le premier oeil, une zone périphérique est utilisée principalement pour la vision à distance. Dans le second oeil, une zone centrale est utilisée principalement pour la vision à distance. Les systèmes comprennent un dispositif laser et un processeur servant à diriger le dispositif laser pour effectuer l'ablation sur les deux yeux du patient.

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