Schirmer tear test

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Calorimeter

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422 57, 422 58, 435805, 436162, 436169, G01N 3122

Patent

active

050063103

ABSTRACT:
An improved Schirmer I Tear Test is provided. The improvement comprises a strip having a graduated migration scale printed on the test strip and the presence of a water soluble marker dye that comigrates with the tear migration front. Both improvements serve to increase the reproducibility of the test and ease which with the results are read.

REFERENCES:
patent: 3420205 (1969-01-01), Morison
patent: 3819490 (1974-06-01), Klingstrom et al.
patent: 4095950 (1978-06-01), Kahn
patent: 4428908 (1984-01-01), Ashley et al.
patent: 4857453 (1989-08-01), Ullman et al.
Gifford, Sanford R., et al., "Keratoconjuctivitis Sicca" in Archives of Ophthalmology (1943) 30: 207-216.
Jones, L. T. and Linn, M. L., "The Diagnosis of the Causes of Epiphora" in American Journal of Ophthamology (May 1969) pp. 751-754.
Roth, Andrew de, "Hypofunction of the Lacrimal Gland" from the Department of Ophthamology, Northwestern University Medical School. Read before the Chicago Ophthamological Society (Mar. 1940).

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