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2 March 2010 Measurement of the tear film and anterior chamber by confocal microscopy
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Proceedings Volume 7550, Ophthalmic Technologies XX; 755028 (2010)
Event: SPIE BiOS, 2010, San Francisco, California, United States
We report on the development of a novel, low cost instrument that is capable of accurately measuring small, short and long term changes in the thickness of the cornea and tear film at high speed. The performance of the instrument was tested by measuring the influence of Allergan's OPTIVETM lubricating eye drops on the thickness of the cornea and tear film. Comparative measurements to quantify the performance were taken using Haag-Streit's LenStar. It was found that the newly developed instrument accurately measured a change in thickness of around 9 μm with an accuracy comparable to the LenStar, and with a standard deviation of less than 1 micrometer. Since the new instrument was not configured to resolve the tear film from the cornea, we are not yet able to distinguish the cause of the thickening.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kim K. Buttenschön, John M. Girkin, Clive G. Wilson, and Daniel J. Daly "Measurement of the tear film and anterior chamber by confocal microscopy", Proc. SPIE 7550, Ophthalmic Technologies XX, 755028 (2 March 2010);


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