Residual accomodation threshold for correction of presbyopia...

Details Residual accomodation threshold for correction of presbyopia... Residual accomodation threshold for correction of presbyopia...

G - Physics

02

C

G02C 7/02 (2006.01)

Patent

CA 2570151

Methods, devices, and systems establish an optical surface shape that mitigates or treats presbyopia in a particular patient. The combination of distance vision and near vision in a patient can be improved, often based on input patient parameters such as pupil size, residual accommodation, and power need. Iterative optimization may generate a customized corrective optical shape for the patient. Threshold residual accommodation is established for presbyopia treatment.

La présente invention concerne des méthodes, des dispositifs et des systèmes permettant d'élaborer une forme de surface optique servant à atténuer ou à traiter la presbytie chez un patient particulier. La combinaison de la vision de loin et de la vision de près chez un patient peut être améliorée, souvent, sur la base de paramètres relatifs au patient préalablement saisis, tels que la taille de la pupille, l'accommodation résiduelle, et le besoin de puissance. Une optimisation itérative peut générer une forme optique de correction personnalisée pour le patient. Cette invention concerne une méthode permettant d'obtenir une accommodation résiduelle seuil pour le traitement de la presbytie.

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