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J Ophthalmic Inflamm Infect. 2013 Jan 3;3(1):4. doi: 10.1186/1869-5760-3-4.

Use of linseed oil to treat experimentally induced keratoconjunctivitis sicca in rabbits.

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Department of Small Animal Medicine, University of Oeste Paulista (UNOESTE), Rodovia Raposo Tavares, Km 572, Presidente Prudente, São Paulo, 19001-970, Brazil.



The objective of this study was to evaluate the effectiveness of various linseed oil (LO) preparations (oral, topical, oral and topical combined) in treating experimentally induced keratoconjunctivitis sicca (KCS) in rabbits. Twenty male New Zealand white rabbits were divided into four groups: group C (control), group OLO (oral LO), group TLO (topical LO), and group OTLO (oral and topical LO). The animals were evaluated weekly using Schirmer's tear test (STT), fluorescein test (FT), and Rose Bengal test (RBT) and were euthanized at the end of the experiment for histopathological analysis.


There were significant improvements in the parameters analyzed (STT, FT, and RBT) and in the histopathological finding in all of the groups using LO.


The analyzed results demonstrate that LO, administered orally or topically, was effective in treating experimentally induced KCS in rabbits, although combined oral and topical LO did not show additional benefits greater than those with a single route of administration.

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