Modular lens adapters for mobile anterior and posterior segment ophthalmoscopy

Patent metadata

Field	Value
Publication number	US-10092182-B2
Application number	US-201715623298-A
Country	US
Kind code	B2
Filing date	Jun 14, 2017
Priority date	May 31, 2013
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A modular lens adapter system or kit is provided for mobile anterior and posterior segment ophthalmoscopy. Equipped with various lens adapter modules, respective lenses and a mobile imaging device, a user is provided with tools for various mobile ophthalmoscopy imaging applications. Eye care practitioners can use their existing lenses to customize the modular lens adapter system in a cost-effective way, which allows for mobile and remote capture, viewing, and utilization of clinical images. The various modules are also adaptable to nearly any type of phone or tablet regardless of its dimensions or presence of a protective case. The invention also addresses the need for fewer, smaller, less expensive, and easier to use ophthalmic imaging equipment, which is further important in enabling a broad base of users.

First claim

What is claimed is:

1. A modular lens adapter system for mobile anterior and posterior segment ophthalmoscopy, comprising:
(a) a variable intensity light source;
(b) an ophthalmoscopy lens adapter for imaging the posterior segment of an eye,
wherein the ophthalmoscopy lens adapter comprises a telescoping arm with a first end and a second end, wherein the first end the telescoping arm comprises a lens mount configured to removably mount an ophthalmoscopy lens and fold relative to the telescoping arm, and wherein on the second end the telescoping arm comprises a mobile imaging device mount configured to removably mount a mobile imaging device comprising a phone, smartphone, or tablet computing device,
wherein the telescoping arm can be oriented to position the ophthalmoscopy lens at various distances with respect to a lens of the mobile imaging device,
wherein the ophthalmoscopy lens adapter is configured such that the ophthalmoscopy lens is coaxially aligned with the lens of the mobile imaging device, and
wherein the variable intensity light source is configured to be coaxially aligned with the lens of the mobile imaging device; and

(c) a macro lens adapter comprising a lens mount configured to mount a macro lens for imaging the anterior segment of the eye, wherein the macro lens adapter is configured to be removably engaged with the mobile imaging device, wherein the variable intensity light source is configured to be coaxially aligned with the macro lens, and wherein the macro lens adapter is configured such that the macro lens is coaxially aligned with the lens of the mobile imaging device.

2. The system as claimed in claim 1 , wherein the ophthalmoscopy lens adapter does not have reflective mirrors.

3. The system as claimed in claim 1 , wherein the ophthalmoscopy lens adapter has an un-encased optical pathway between the mobile imaging device mount and the ophthalmoscopy lens.

4. The system as claimed in claim 1 , wherein the variable intensity light source and the macro lens adapter are integrated as one adapter configured.

5. The system as claimed in claim 1 , wherein the variable intensity light source is an external variable intensity LED adapter, configured to be removably engaged with the mobile imaging device.

6. The system as claimed in claim 1 , wherein the telescoping arm can position the lens mount from the mobile phone mount in a range of 1 cm to 20 cm.

7. The system as claimed in claim 1 , wherein the ophthalmoscopy lens adapter, without holding the ophthalmoscopy lens, is less than 100 grams.

8. The system as claimed in claim 1 , further comprising a gonioscopy lens adapter having a lens mount configured to removably mount a gonioscopy lens for imaging the iridocorneal angle of the eye, wherein the gonioscopy lens adapter is configured to be removably engaged with the mobile imaging device, wherein the variable intensity light source is configured to be coaxially aligned with the gonioscopy lens, and wherein the gonioscopy lens adapter is configured to be coaxially aligned with the lens of the mobile imaging device.

9. The system as claimed in claim 1 , wherein the macro lens adapter is configured to mount a gonioscopy lens for imaging the iridocorneal angle of the eye.

10. The system as claimed in claim 1 , wherein the macro lens adapter and the ophthalmoscopy lens adapter are separate.

11. The system as claimed in claim 1 , further comprising a light filter for the macro lens adapter configured to filter the light from the variable intensity light source.

12. The system as claimed in claim 11 , wherein the light filter is a blue filter.

13. The system as claimed in claim 1 , wherein the lens mount of the ophthalmoscopy lens adapter is sized to accommodate the ophthalmoscopy lens in the range of 10D to 60D.

14. A lens adapter system for anterior and posterior ophthalmoscopy comprising:
(a) an ophthalmoscopy lens adapter for imaging the posterior segment of an eye,
wherein the ophthalmoscopy lens adapter comprises an arm with a first end and second end, wherein on the first end the arm comprises a lens mount configured to hold an ophthalmoscopy lens, and wherein on the second end the arm comprises a mobile imaging device mount configured to removably mount a mobile imaging device comprising a phone, smartphone, or tablet computing device, wherein the ophthalmoscopy lens adapter has an open optical pathway between the mobile imaging device mount and the ophthalmoscopy lens,
wherein the mobile imaging device mount is configured such that the ophthalmoscopy lens is coaxially aligned with the lens of the mobile imaging device when the mobile imaging device mount is engaged with the mobile imaging device; and

(b) a lens adapter for imaging the anterior segment of the eye comprising a lens mount configured to mount a lens for imaging the anterior segment of the eye, wherein the anterior lens adapter is configured to be removably engaged with the mobile imaging device such that the lens is coaxially aligned with the lens of the mobile imaging device.

15. The system of claim 14 , further comprising a light filter for the anterior lens adapter configured to filter the light from a light source on the mobile imaging device.

16. The system of claim 15 , wherein the light filter is a blue filter.

17. The system of claim 14 , wherein the lens for imaging the anterior segment of the eye comprises a macro lens.

18. The system as claimed in claim 14 , wherein the lens mount of the ophthalmoscopy lens adapter is sized to accommodate an ophthalmoscopy lens in the range of 10D to 60D.

19. A method for mobile anterior and posterior segment ophthalmoscopy, comprising:
(a) obtaining an image of an anterior segment of an eye of a patient with a mobile imaging device comprising a phone, smartphone, or tablet computing device and a macro lens adapter removably engaged with the mobile imaging device, the macro lens adapter comprising a lens mount configured to removably mount a macro lens for imaging the anterior segment of the eye and a variable light intensity source, wherein the variable intensity light source is configured to be coaxially aligned with the macro lens, and wherein the macro lens is configured to be coaxially aligned with the lens of the mobile imaging device when mounted to the mobile imaging device; and
(b) obtaining an image of the posterior segment of the eye of the patient with the mobile imaging device and an ophthalmoscopy lens adapter comprising a telescoping arm with a first end and a second end, wherein the first end of the telescoping arm comprises a lens mount configured to removably mount an ophthalmoscopy lens, and wherein on the other end the telescoping arm comprises a mobile imaging device mount configured to removably mount the mobile imaging device.

20. The method of claim 19 , further comprising: adjusting a length of the telescoping arm of the ophthalmoscopy lens adapter to achieve a desired focus for the image of the posterior segment of the eye of the patient.

21. The method of claim 19 , further comprising: adjusting the variable light source to provide a desired amount of light to the eye of the patient.

22. The method of claim 19 , further comprising: after obtaining an image of the posterior segment of the eye, removing the ophthalmoscopy lens from the lens mount and folding the lens mount relative to the telescoping arm.

23. The method of claim 19 , wherein the lens mount of the ophthalmoscopy lens adapter is sized t

Assignees

• Univ Leland Stanford Junior

Inventors

• Myung David
• Chang Robert Tienhan
• He Lingmin
• Nugent Alex
• Van Huynh P
• Wong Ira G
• Jais Alexandre
• Blumenkranz Mark

Classifications

• A61B3/117

  for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes · CPC title

• A61B3/12

  for looking at the eye fundus, e.g. ophthalmoscopes (A61B3/13 takes precedence) · CPC title

• A61B3/1208 Primary

  Multiple lens hand-held instruments · CPC title

• A61B3/14

  Arrangements specially adapted for eye photography · CPC title

• A61B5/6898

  Portable consumer electronic devices, e.g. music players, telephones, tablet computers · CPC title