Patent ID: 11883098
Assignee: CARL ZEISS VISION INTERNATIONAL GMBH
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 6:
7. A method for determining an ocular aberration of at least one eye of a user, the method comprising the following steps:
a) measuring at least one optical wavefront comprised by at least one light beam, wherein an ocular aberration of the at least one eye of the user is determined from the at least one optical wavefront; and
b) generating multiple diffraction orders in the at least one light beam in two meridians in a manner that the multiple diffraction orders are spatially separated on a wavefront sensing unit and in the at least one eye of the user,, wherein, the ocular aberration of the at least one eye of the user is determined by measuring at least one of a defocus of the at least one eye of the user or an equivalent sphere across a retinal field of the at least one eye of the user, wherein an ocular defocus map representing the ocular aberration of the retinal field in the at least one eye of the user is obtained, and wherein the ocular defocus map includes at least one of: values related to at least nine light spots generated across the wavefront sensing unit in the two meridians, or values interpolated between the at least nine light spots generated across the wavefront sensing unit.