Lavaux tear test lacrimal equilibration time (LET)

Details Lavaux tear test lacrimal equilibration time (LET) Lavaux tear test lacrimal equilibration time (LET)

1992-05-07

1994-10-04

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Topical body preparation containing solid synthetic organic...

Ophthalmic preparation

604264, 604267, 514915, A61K 31715

Patent

active

053524454

ABSTRACT:
A method for measuring precorneal tear film stability and diagnosing dry and wet eye conditions. The method comprises stressing baseline visual acuity with the installation of a predetermined ophthalmic preparation and measuring the time to recover normal visual acuity. Once baseline visual acuity is regained and sustained, the Lacrimal Equilibration Time (LET) is recorded. LET measures the quality of precorneal tear film stability and is related to the degree of dry and wet eye condition.

REFERENCES:
patent: 4839342 (1989-06-01), Kaswan
patent: 5006310 (1991-04-01), Gin et al.
patent: 5041434 (1991-08-01), Lubkin
Rieger Klin. Monat Aug. 1987 Feb:190(2) 135-8.
Hawkins et al Mar. 1 (188)(5) J. Am. Vet Med. Assoc. 1986 511-3.
Pandher et al Acta Ophthalmol Dec. 1985; 63(6) 695-7.

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