Modifiable-focus lens devices, systems, and related methods

Patent metadata

Field	Value
Publication number	US-10324309-B2
Application number	US-201615074606-A
Country	US
Kind code	B2
Filing date	Mar 18, 2016
Priority date	Jul 23, 2015
Publication date	Jun 18, 2019
Grant date	Jun 18, 2019

Abstract

Embodiments disclosed herein are directed to intraocular lens devices, systems, and methods that include determining relative tilt and/or vergence rotation of a subject's eyes and focusing one or more intraocular lenses based on the determined vergence rotation.

First claim

What is claimed is:

1. A system, comprising:
an eye-vergence detection system configured to detect at least one of a vergence rotation between a first eye and a second eye of a subject or a change in the vergence rotation between the first eye and the second eye of the subject and to generate one or more detection outputs corresponding thereto, the eye-vergence detection system including:
a field source associated with the first eye that is configured to be positioned on the subject, the field source configured to establish an identifiable field; and
a sensor associated with the second eye that is configured to detect a change in the identifiable field established by the field source;

a switchable lens configured to selectively switch between a first focal length and at least a second focal length that is less than the first focal length; and
a controller operably coupled to the eye-vergence detection system to receive the one or more detection outputs therefrom, the controller configured to detect the vergence rotation or changes in the vergence rotation by distinguishing a first portion of a rotation between the first eye and the second eye from a second portion due to a co-tilt rotation of both the first eye and the second eye, the controller including control electrical circuitry configured to direct the switchable lens to selectively switch between the first focal length and the second focal length responsive to the one or more detection outputs.

2. The system of claim 1 , wherein at least a portion of the eye-vergence detection system is removably positionable on a subject.

3. The system of claim 1 , wherein at least a portion of the eye-vergence detection system is positionable remotely from the subject.

4. The system of claim 1 , wherein the sensor is configured to detect the change of the vergence rotation between the first eye and the second eye of the subject, the sensor configured to generate the one or more detection outputs on the detected change.

5. The system of claim 1 , wherein the field source is configured to establish the identifiable field having a predetermined orientation relative to at least one of the first eye or the second eye of the subject.

6. The system of claim 5 , wherein the identifiable field is a magnetic field.

7. The system of claim 6 , wherein the sensor is configured to detect a change in the established identifiable magnetic field corresponding to the change the vergence rotation between the first eye and the second eye of the subject.

8. The system of claim 6 , wherein the at least one sensor is configured to detect a change corresponding to the vergence rotation by detecting a changed component of the field source in a direction substantially perpendicular to a direction of a dominant component of the field source.

9. The system of claim 1 , wherein the field source is configured to be removably positioned on the subject.

10. The system of claim 9 , wherein the field source is included in glasses wearable by the subject.

11. The system of claim 1 , wherein the switchable lens is included in glasses wearable by the subject.

12. The system of claim 11 , wherein the glasses include at least one non-switchable lens and the switchable lens is mounted to or integrated with the at least one non-switchable lens.

13. The system of claim 1 , wherein the sensor is configured to be mounted on at least one of the first eye or the second eye or implanted in at least one of the first eye or the second eye of the subject.

14. The system of claim 1 , wherein the sensor is configured to be positioned externally to the first eye and the second eye.

15. The system of claim 14 , wherein the sensor is configured to be removably positioned on the subject.

16. The system of claim 15 , wherein the sensor is included in glasses wearable by the subject.

17. The system of claim 1 , further comprising a communication device that operably couples the sensor to the controller.

18. The system of claim 1 , wherein the eye-vergence detection system further includes:
an additional sensor configured to be positioned externally to one or more of the first eye and the second eye and configured to detect a change in an additional identifiable field corresponding to the vergence rotation between the first eye and the second eye, and to generate one or more additional detection outputs at least partially based on the detected change.

19. The system of claim 18 , further comprising an additional switchable lens configured to selectively switch between a first focal length and at least a second focal length that is less than the first focal length.

20. The system of claim 19 , further comprising an additional controller to receive the one or more additional detection outputs, the additional controller including additional control electrical circuitry configured to direct the additional switchable lens to selectively switch between the first focal length and the at least a second focal length responsive to the additional detection output.

21. The system of claim 1 , wherein the eye-vergence detection system includes at least one camera configured to have a field of view that captures movement of at least one of the first eye or the second eye of the subject and to generate the one or more detection outputs in response thereto.

22. The system of claim 21 , wherein the at least one camera is mounted to glasses wearable by the subject.

23. The system of claim 22 , wherein the at least one camera includes two cameras positioned about the first eye and having a generally horizontally oriented field of view.

24. The system of claim 22 , wherein the at least one camera includes two additional cameras positioned about the second eye and having a generally horizontally oriented field of view.

25. The system of claim 22 , wherein the at least one camera includes two cameras positioned about the first eye and having a generally vertically oriented field of view.

26. The system of claim 25 , wherein the at least one camera includes two additional cameras positioned about the second eye and having a generally vertical oriented field of view.

27. The system of claim 1 , wherein the passive sensor includes at least one of a microelectromechanical-based sensor, a hall effect sensor, a magnetoresistance sensor, a magneto-diode, a Lorentz forced-based sensor, or an electron tunneling-based sensor.

28. The system of claim 1 , wherein at least one of the first field source or the second field source includes a permanent magnet.

29. A system, comprising:
an eye-vergence detection system including:
a first field source removably positionable on a subject and configured to establish a first identifiable magnetic field, the first field source associated with a first eye of the subject;
a second field source removably positionable on the subject and configured to establish a second identifiable magnetic field, the second field source associated with a second eye of the subject, the second field source configured to establish the second identifiable magnetic field oriented at an oblique or perpendicular angle relative to the first identifiable magnetic field;
at least one sensor configured to detect a change in at least one of the first identifiable magnetic field or the second identifiable magnetic field in response to a change in a vergence rotation between the f

Assignees

• Elwha Llc

Inventors

• Hyde Roderick A
• Tegreene Clarence T

Classifications

• G02C7/041

  bifocal; multifocal · CPC title

• A61B3/113

  for determining or recording eye movement · CPC title

• A61F2/1624

  having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside · CPC title

• A61F2250/0002

  for data transfer · CPC title

• G02C7/08

  Auxiliary lenses; Arrangements for varying focal length · CPC title