Evaluating the Clinical Utility of Noninvasive Methods for Measuring Tear Film Surface Quality

Dorota H. Szczesna, D. Robert Iskander, Henryk T. Kasprzak
2011 Photonics Letters of Poland  
The cornea is covered by a thin tear film that performs various vital functions including the provision of a high quality optical surface and protecting the cornea. Clinical methods for assessing tear film surface quality are mostly invasive and often unreliable. Recently, several non-invasive methods have been proposed. In this letter, we review three promising optical techniques based on high speed videokeratoscopy, wavefront sensing and lateral shearing interferometry, and evaluate their
more » ... evaluate their clinical utility.
doi:10.4302/plp.2011.1.13 fatcat:xaa2imhrqrevbebtlgeoa3gwby