Patent ID: 11877797
Assignee: AMO DEVELOPMENT, LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A system, comprising:
a wavefront aberrometer configured to measure a refraction of an eye;
at least one processor;
a first movable stage, wherein the first movable stage is movable with respect to the eye under control of the at least one processor;
a second movable stage mounted on the first movable stage, wherein the second movable stage is independently movable with respect to the first movable stage and with respect to the eye, under control of the at least one processor;
a fixation target for presentation by the system to the eye to cause the eye to accommodate during a process of measuring the refraction of the eye, wherein the fixation target is disposed on the second movable stage; and
an optical system disposed in an optical path between the fixation target and the eye, wherein the optical system includes:
a first lens which is not disposed on the first stage or second stage,
a second lens and a third lens, each disposed on the first stage and not disposed on the second stage,
a fourth lens disposed on the second stage and stationary relative to the fixation target, and
a Stokes cell disposed on the first stage in the optical path between the second lens and the third lens.