Modular lens adapters for mobile anterior and posterior segment ophthalmoscopy

• US 9,706,918 B2
• Filed: 05/30/2014
• Issued: 07/18/2017
• Est. Priority Date: 05/31/2013
• Status: Active Grant

• Current Assignee: Board of Trustees of the Leland Stanford Junior University (Stanford Management Co.)
• Original Assignee: Board of Trustees of the Leland Stanford Junior University (Stanford Management Co.)
• Inventors: Chang, Robert Tienhan, He, Lingmin, Nugent, Alex, Van, Huynh P., Wong, Ira G., Jais, Alexandre, Blumenkranz, Mark, Myung, David
• Primary Examiner(s): Dinh, Jack
• Application Number:
  US14/893,951
• Publication Number:
  US 20160113489A1
• Time in Patent Office: 1,145 Days
• Field of Search: 351206, 351221
• CPC Class Codes: A61B 2090/309 using white LEDs
• CPC Class Codes: A61B 2560/0443 Modular apparatus
• CPC Class Codes: A61B 3/10 Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
• CPC Class Codes: A61B 3/117 for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes
• CPC Class Codes: A61B 3/12 for looking at the eye fundus, e.g. ophthalmoscopes A61B3/13 takes precedence
• CPC Class Codes: A61B 3/1208 Multiple lens hand-held instruments
• CPC Class Codes: A61B 3/125 with contact lenses contact lenses per se G02C7/04
• CPC Class Codes: A61B 3/14 Arrangements specially adapted for eye photography apparatus or arrangements for taking photographs per se G03B
• CPC Class Codes: A61B 3/145 by video means
• CPC Class Codes: A61B 5/6898 Portable consumer electronic devices, e.g. music players, telephones, tablet computers

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.

Claims

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 two ends, wherein on the one end 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 a mobile imaging device,

wherein the telescoping arm can be oriented to position the ophthalmoscopy lens at various distances with respect to the lens of the mobile imaging device,

wherein the ophthalmoscopy lens is configured to be 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 ophthalmoscopy lens and the lens of the mobile imaging device; and

(c) a macro lens adapter comprising a lens mount configured to removably mount a macro lens for imaging the anterior segment of the eye, wherein the macro lens adapter is configured to be removably adapted to 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 is configured to be coaxially aligned with the lens of the mobile imaging device.

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

3. The system as set forth in claim 1, wherein the ophthalmoscopy lens adapter does not have reflective mirrors.

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

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

6. The system as set forth in claim 1, wherein the variable intensity light source is a variable intensity LED built-in to the mobile imaging device.

7. The system as set forth 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.

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

9. The system as set forth in claim 1, wherein the lens mount of the macro lens adapter is configured to fit as close as possible to the lens of the mobile imaging device.

10. The system as set forth in claim 1, wherein the lens mount of the ophthalmoscopy lens adapter can be folded to be parallel and flush with the telescoping arm to minimize space.

11. The system as set forth in claim 1, wherein the ophthalmoscopy lens adapter can be minimized in size so that it can be stored in a pocket of a garment.

12. The system as set forth 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 adapted to 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.

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