US 2023/0404800 A1 · ULTRASONIC OPHTHALMIC DEVICE

Abstract

An ophthalmic device comprises an ultrasonic transducer, an accommodation actuator, and a controller. When the ophthalmic device is mounted in or on an eye of a user, the ultrasonic transducer is positioned to direct ultrasonic signals towards ciliary processes in the eye and the accommodation actuator is positioned to focus light entering the eye. The controller is coupled to the ultrasonic transducer and the accommodation actuator. The controller includes logic that when executed by the controller causes the ophthalmic device to perform operations including emitting the ultrasonic signals from the ultrasonic transducer towards the ciliary processes, receiving reflected ultrasonic signals from the ciliary processes with the ultrasonic transducer, calculating a time of flight between emitting the ultrasonic signals and receiving the reflected ultrasonic signals, and adjusting an optical power of the accommodation actuator based on the time of flight.

Claims20

Dependent claims

At least one non-transitory machine-accessible storage medium that provides instructions that, when executed by a machine, will cause the machine to perform operations comprising:

emitting ultrasonic signals from an ultrasonic transducer towards ciliary processes in an eye, wherein a width of the ultrasonic signals spans more than one ciliary process included in the ciliary processes;
receiving reflected ultrasonic signals from the ciliary processes with the ultrasonic transducer;
calculating a first time of flight between emitting the ultrasonic signals and receiving the reflected ultrasonic signals;
and
adjusting an optical power of an accommodation actuator based on the first time of flight.

2 more elements

An ophthalmic device, comprising:

two or more ultrasonic transducers adapted to direct ultrasonic signals towards a ciliary body in an eye;
an accommodation actuator adapted to focus light entering the eye;
and
a controller coupled to the two or more ultrasonic transducers and the accommodation actuator, wherein the controller includes logic that when executed by the controller causes the ophthalmic device to perform operations including:
emitting the ultrasonic signals from the two or more ultrasonic transducers towards the ciliary body;
receiving reflected ultrasonic signals from the ciliary body, respectively, with the two or more ultrasonic transducers;
determining a differential signal based on the reflected ultrasonic signals;
and
adjusting an optical power of the accommodation actuator based on the differential signal.

6 more elements

At least one non-transitory machine-accessible storage medium that provides instructions that, when executed by a machine, will cause the machine to perform operations comprising:

emitting ultrasonic signals from two or more ultrasonic transducers towards a ciliary body in an eye;
receiving reflected ultrasonic signals from the ciliary body, respectively, with the two or more ultrasonic transducers;
determining a differential signal based on the reflected ultrasonic signals;
and
adjusting an optical power of an accommodation actuator based on the differential signal.

2 more elements

Dependencies are inferred from the claim text.

Ultrasonic ophthalmic device

Life of this patent

Ultrasonic ophthalmic device

Life of this patent

Abstract

Claims20