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Proceedings Paper

Dacryomeniscometry: an early attempt
Author(s): Arthur Ho; Eric Basil Papas; Kaykhosrow Keshavarzi; Edward Lum; Klaus Ehrmann
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Paper 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.

Paper Details

Date Published: 7 June 2000
PDF: 9 pages
Proc. SPIE 3908, Ophthalmic Technologies X, (7 June 2000); doi: 10.1117/12.387530
Show Author Affiliations
Arthur Ho, Univ. of New South Wales (Australia)
Eric Basil Papas, Univ. of New South Wales (Australia)
Kaykhosrow Keshavarzi, Univ. of New South Wales (Australia)
Edward Lum, Univ. of New South Wales (Australia)
Klaus Ehrmann, Univ. of New South Wales (Australia)


Published in SPIE Proceedings Vol. 3908:
Ophthalmic Technologies X
Pascal O. Rol; Karen Margaret Joos; Fabrice Manns, Editor(s)

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