Dacryomeniscometry: an early attempt

Arthur Ho; Eric Basil Papas; Kaykhosrow Keshavarzi; Edward Lum; Klaus Ehrmann

doi:10.1117/12.387530

7 June 2000 Dacryomeniscometry: an early attempt

Arthur Ho, Eric Basil Papas, Kaykhosrow Keshavarzi, Edward Lum, Klaus Ehrmann

Proceedings Volume 3908, Ophthalmic Technologies X; (2000) https://doi.org/10.1117/12.387530
Event: BiOS 2000 The International Symposium on Biomedical Optics, 2000, San Jose, CA, United States

Abstract

The pre-corneal tear layer provides an important optical as well as physiological function. Hence, the ability to assess the quality and behavior of tears, especially in dry-eye, marginal dry-eye and contact lens patients is important. While a large range of clinical tests exists for assessing tear quality, many are subjective and show poor repeatability. Since the tear meniscus is dependent on factors such as volume, viscosity and 'wettability,' we attempted to develop an optical system for imaging the tear meniscus. A basic prototype to test feasibility has been constructed. An algorithm for computing the profile of the meniscus was also developed. The methodology is described together with some examples of tear menisci imaged and analyzed.

Citation Download Citation

Arthur Ho, Eric Basil Papas, Kaykhosrow Keshavarzi, Edward Lum, and Klaus Ehrmann "Dacryomeniscometry: an early attempt", Proc. SPIE 3908, Ophthalmic Technologies X, (7 June 2000); https://doi.org/10.1117/12.387530

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