Ocular mask having selective spectral transmission

• US 9,545,303 B2
• Filed: 11/30/2012
• Issued: 01/17/2017
• Est. Priority Date: 12/02/2011
• Status: Active Grant

• Current Assignee: Acufocus, Inc.
• Original Assignee: Acufocus, Inc.
• Inventors: Vilupuru, Abhiram S., Christ, Marie Dvorak
• Primary Examiner(s): Willse, David H.
• Assistant Examiner(s): SHIPMON, TIFFANY P
• Application Number:
  US13/691,625
• Publication Number:
  US 20130268071A1
• Time in Patent Office: 1,509 Days
• Field of Search: 623/6.17
• US Class Current: 1/1
• CPC Class Codes: A61B 3/102 for optical coherence tomography [OCT]
• CPC Class Codes: A61F 2/14 Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
• CPC Class Codes: A61F 2/145 Corneal inlays, onlays, or lenses for refractive correction
• CPC Class Codes: A61F 2/1451 Inlays or onlays
• CPC Class Codes: A61F 2/15 Implant having one or more holes, e.g. for nutrient transport, for facilitating handling
• CPC Class Codes: A61F 2/16 Intraocular lenses
• CPC Class Codes: A61F 2/1613 having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
• CPC Class Codes: A61F 2/1659 having variable absorption coefficient for electromagnetic radiation, e.g. photochromic lenses
• CPC Class Codes: A61F 2250/0036 differing in thickness
• CPC Class Codes: A61F 2250/0053 differing in optical properties
• CPC Class Codes: A61F 9/04 Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing eye-bandages A61F13/12; protective face-masks A41D13/11; protectors for shampooing A45D
• CPC Class Codes: G02C 7/165 with stenopaeic apertures

Abstract

A mask is provided that is configured to increase the depth of focus of a patient. The mask can include an aperture configured to transmit along an optical axis substantially all visible incident light. The mask can further include a portion surrounding at least a portion of the aperture. The portion may be configured to be substantially opaque to visible electromagnetic radiation and be substantially transparent to electromagnetic radiation transmitted from an ocular examination device (e.g., substantially transparent to at least some non-visible electromagnetic radiation with a wavelength between about 750 nm and about 1500 nm).

Claims

1. An ophthalmic device comprising:

an implantable mask configured to increase the depth of focus of a human patient when the mask is implanted in an eye of the human patient, the mask comprising an aperture configured to transmit along an optical axis substantially all visible incident light,

the mask further comprising a structure surrounding the aperture, the structure configured to be substantially opaque to visible light and to be substantially transparent to at least some non-visible electromagnetic radiation with a wavelength between about 750 nm and about 1500 nm to facilitate examining ocular tissue posterior to the mask.

2. The ophthalmic device of claim 1 further comprising a plurality of holes in the structure, wherein the plurality of holes are interspersed in an irregular pattern and configured to permit a bond to form between lens body portions on either side of the mask.

3. The ophthalmic device of claim 2, wherein each of the plurality of holes has a diameter between about 0.01 mm and 0.02 mm.

4. The ophthalmic device of claim 1, wherein the structure comprises at least one dye capable of absorbing electromagnetic radiation.

5. The ophthalmic device of claim 4, wherein the at least one dye comprises a first dye, the first dye absorbing a first range of electromagnetic radiation wavelengths, and a second dye, the second dye absorbing a second range of electromagnetic radiation wavelengths.

6. The ophthalmic device of claim 5, wherein the first range of electromagnetic radiation wavelengths and the second range of electromagnetic radiation wavelengths include substantially all the range of visible electromagnetic radiation thereby absorbing substantially all the range of visible electromagnetic radiation, and wherein the first range of electromagnetic radiation wavelengths and the second range of electromagnetic radiation wavelengths do not include a substantial range of the near infrared range of electromagnetic radiation thereby allowing transmission of substantially all the range of near infrared electromagnetic radiation.

7. The ophthalmic device of claim 5, wherein the at least one dye further comprises a third dye, the third dye absorbing a third range of electromagnetic radiation wavelengths.

8. The ophthalmic device of claim 7, wherein the first range of electromagnetic radiation wavelengths, the second range of electromagnetic radiation wavelengths, and the third range of electromagnetic radiation wavelengths include substantially all the range of visible electromagnetic radiation thereby absorbing substantially all the range of visible electromagnetic radiation, and wherein the first range of electromagnetic radiation wavelengths, the second range of electromagnetic radiation wavelengths, and the third range of electromagnetic radiation wavelengths do not include a substantial range of the near infrared range of electromagnetic radiation thereby allowing transmission of substantially all the range of near infrared electromagnetic radiation.

9. The ophthalmic device of claim 7, wherein the first dye is an orange dye, the second dye is a blue-green dye, and the third dye is a yellow dye.

10. The ophthalmic device of claim 5, wherein the first dye is an orange dye and wherein the second dye is a blue-green dye.

11. The ophthalmic device of claim 10, wherein the orange dye is 2-[N-ethyl-4-[(4-nitrophenyl)diazenyl]anilino]ethyl prop-2-enoate.

12. The ophthalmic device of claim 10, wherein the blue-green dye is 2-[4-({4-[(4-{2-[(2-methylprop-2-enoyl)oxy]ethyl}phenyl)amino]-9,10-dioxo-9,10-dihydro-anthracen-1-yl}amino)phenyl]ethyl-2-methyl prop-2-enoate.

13. The ophthalmic device of claim 4, further comprising a UV blocker, wherein the UV blocker blocks at least some of the UV range of electromagnetic radiation.

14. The ophthalmic device of claim 13, wherein the UV blocker is a benzotriazole UV blocker.

15. The ophthalmic device of claim 13, wherein the UV blocker is ([2-(5-Chloro-2H-Benzotriazole-2-yl)-6-(1,1-dimethylethyl)-4-ethenylphenol.

16. The ophthalmic device of claim 4, further comprising a UV blocker, wherein said UV blocker is ([2-(5-Chloro-2H-Benzotriazole-2-yl)-6-(1,1-dimethylethyl)-4-ethenylphenol, wherein the at least one dye comprises 2-[N-ethyl-4-[(4-nitrophenyl)diazenyl]anilino]ethyl prop-2-enoate and 2-[4-({4-[(4-{2-[(2-methylprop-2-enoyl)oxy]ethyl}phenyl)amino]-9,10-dioxo-9,10-dihydro-anthracen-1-yl}amino)phenyl]ethyl-2-methyl prop-2-enoate.

17. The ophthalmic device of claim 1, wherein the mask is coupled to a lens body.

18. The ophthalmic device of claim 17, wherein the mask is embedded within the lens body.

19. An ophthalmic device configured to increase the depth of focus of a patient, comprising

a first zone configured to transmit along an optical axis a majority of visible incident light;

and

a mask disposed about the first zone, the mask comprising a plurality of holes and a portion surrounding each of the plurality of holes, the portion surrounding the plurality of holes being substantially opaque to visible light and substantially transparent to at least some non-visible electromagnetic radiation with a wavelength between about 750 nm and about 1500 nm.

20. The ophthalmic device of claim 19, wherein the mask is substantially transparent to at least some electromagnetic radiation in the near infrared spectrum.

21. The ophthalmic device of claim 19, wherein the mask is coupled to a lens body.

22. The ophthalmic device of claim 21, wherein the mask is embedded in the lens body.

23. The ophthalmic device of claim 22, wherein the lens body comprises a lens material, the lens material extending through the plurality of holes of the mask.

24. A method of examining an eye of a patient having an implantable pinhole imaging device configured to increase the depth of focus of a human patient disposed therein, the pinhole imaging device comprising an aperture configured to transmit along an optical axis substantially all visible incident light, the method comprising:

aligning a source of electromagnetic radiation with a portion of the pinhole imaging device that is substantially non-transmissive to light in the visible range; and

transmitting electromagnetic radiation with a wavelength between about 750 nm and about 1500 nm through the substantially non-transmissive portion.

25. The method of claim 24, further comprising:

providing an optical coherence tomography device having a patient interface; and

engaging the patient with the patient interface.

26. The method of claim 25, further comprising transmitting electromagnetic radiation with a wavelength between about 750 nm and about 1500 nm through the aperture of the pinhole imaging device.

27. The method of claim 26, wherein the electromagnetic radiation is simultaneously transmitted through the aperture and the substantially non-transmissive portion of the pinhole imaging device.