Abstract
We report the use of optical reflectometry technique for evaluation of water film on contact lens. The water film can be measured through the spectral dependent reflectance evaluation, which is carried out by illuminating the contact lens with a white light and collecting the returning light with an optical fiber coupled to a spectrometer. Water film thinning process has been observed on different soft contact lenses and minimum measurable thickness is about 0.85 μm. The measurement is fast and accurate. The water film measurement can be valuable for contact lens design to improve its hydrophilic properties. The technique can be extended for the study of tear film dynamics in an eye.
| Original language | English (US) |
|---|---|
| Title of host publication | Ophthalmic Technologies XXI |
| DOIs | |
| State | Published - Apr 1 2011 |
| Event | Ophthalmic Technologies XXI - San Francisco, CA, United States Duration: Jan 22 2011 → Jan 24 2011 |
Publication series
| Name | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
|---|---|
| Volume | 7885 |
| ISSN (Print) | 1605-7422 |
Other
| Other | Ophthalmic Technologies XXI |
|---|---|
| Country | United States |
| City | San Francisco, CA |
| Period | 1/22/11 → 1/24/11 |
Keywords
- Contact Lens
- Hydrophilic
- Reflectometry
- Water Film
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electronic, Optical and Magnetic Materials
- Biomaterials
- Radiology Nuclear Medicine and imaging
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Cite this
Wang, M. R., Lu, H., Wang, J., & Shen, M. (2011). Analysis of water film thickness on contact lens by reflectometry technique. In Ophthalmic Technologies XXI [788503] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 7885). https://doi.org/10.1117/12.876333