Direct visualization of tear film on soft contact lens using ultra-high resolution spectral domain optical coherence tomography

Jianhua Wang, Shuliang Jiao, Marco Ruggeri, Hassan Wehbe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The integrity of the tear film on the surface of contact lenses is essential to maintaining visual clarity and the overall health of the superficial structures of the eye (cornea and conjunctiva) for contact lens wearers. It is very critical to evaluate pre- and post-lens tear films in contact lens practice to make sure the lens is properly fitted. Improper lens fitting may cause ocular discomfort, visual distortion and ocular infection. It is very often for son contact lens wearers to experience dry eye, especially in the afternoon after wearing the lens for a period of time. Dry eye has been a common cause of contact lens drop-off. There is currently no method available to directly visualize the tears on and underneath the contact lens in situ on human eye, mainly due to the extremely difficulty in imaging the micrometer-thin tear layer. An ultra-high resolution spectral domain optical coherence tomography has been developed with a telecentric light delivery system mounted with a slit-lamp. The system has a 3 micrometer depth resolution with a scan width up to 15 mm. The system was used to image soft contact lenses on the human eye. For the first time to our knowledge, tear films on the center and edge of the soft contact lens were directly visualized in vivo.

Original languageEnglish (US)
Title of host publicationOphthalmic Technologies XVIII
DOIs
StatePublished - May 26 2008
EventOphthalmic Technologies XVIII - San Jose, CA, United States
Duration: Jan 19 2008Jan 21 2008

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume6844
ISSN (Print)1605-7422

Other

OtherOphthalmic Technologies XVIII
CountryUnited States
CitySan Jose, CA
Period1/19/081/21/08

Keywords

  • Contact lens
  • Optical coherence tomography
  • Tear film

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Wang, J., Jiao, S., Ruggeri, M., & Wehbe, H. (2008). Direct visualization of tear film on soft contact lens using ultra-high resolution spectral domain optical coherence tomography. In Ophthalmic Technologies XVIII [68441E] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 6844). https://doi.org/10.1117/12.763852