Multi-step laser correction of ophthalmic refractive errors

Details Multi-step laser correction of ophthalmic refractive errors Multi-step laser correction of ophthalmic refractive errors

A - Human Necessities

61

F

A61F 9/01 (2006.01) A61F 9/007 (2006.01) A61B 3/103 (2006.01)

Patent

CA 2388014

A technique of refractive eye correction employs multiple steps to correct refractive errors in the eye. In the first step, gross decentrations of the refractive error are corrected, allowing the subsequent steps to be relatively symmetric in their treatment profile. Then, the eye's refractive error is again measured, and a subsequent treatment is applied for the remaining error. The overall treatment is thus completed in two or more steps.

L'invention concerne une technique de correction de la réfraction ophtalmique, dans laquelle les défauts de réfraction de l'oeil sont corrigés en plusieurs étapes. Au cours de la première étape, on corrige les décentrements importants du défaut de réfraction, ce qui permet d'appliquer un profil de traitement relativement symétrique dans des étapes suivantes. On mesure ensuite une nouvelle fois le défaut de réfraction de l'oeil et on procède à un nouveau traitement pour corriger le défaut restant. De cette manière le traitement complet est terminé en au moins deux étapes.

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