System and method for prescription of visual aids
AssigneeCarl Zeiss Vision GmbH
InventorsMichael Morris, Jesus Miguel Guillen Cabeza, Timo Kratzer
Life of this patent
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Abstract
In one aspect, the invention features a method for determining an eyeglass prescription for an eye. The method includes obtaining a measurement of a wavefront indicative of the refractive properties of the eye, establishing an optimization space corresponding to a plurality of possible prescriptions for the eye, determining a value for a merit function for each of the possible prescriptions in the optimization space, where the merit function value corresponds to a visual function of the eye when corrected using the corresponding possible prescription, generating a representation of the merit function values, and outputting the representation to an eye care professional.
Claims27
A system, comprising:
- a wavefront aberrometer configured to measure a wavefront indicative of the refractive properties of an eye during operation of the system;
- a calculation unit configured so that during operation of the system, the calculation unit receives information about the measured wavefront from the wavefront aberrometer and determines a value for a merit function for a plurality of possible prescriptions for the eye, each merit function value corresponding to a visual function of the eye when corrected using the corresponding possible prescription;
- and
- an output device configured so that during operation of the system, the output device receives information based on the merit function values and outputs a graphical representation of the merit function values to an eye care professional.
Dependencies are inferred from the claim text.