Patent ID: 11896306
Assignee: AMO DEVELOPMENT, LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. A system, comprising:
a first movable stage, wherein the first movable stage is movable linearly under control of the at least one processor with respect to an eye of a subject;
a second movable stage directly mounted on top of the first movable stage, wherein the second movable stage is independently movable linearly with respect to the first movable stage and with respect to the eye in a direction parallel to a linear movement direction of the first movable stage, under control of the at least one processor;
a fixation target which 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 is configured for projecting the fixation target upon the eye to accommodate the eye, and wherein moving the second movable stage with respect to the first movable stage and the eye in the direction parallel to the linear movement direction of the first movable stage to a position where the fixation target is moved away from the eye by an additional amount causes blur cues of the fixation target to indicate to the subject that the fixation target is moving away from the eye at a same time that a size of an image of the fixation target on a retina of the eye decreases.