Effect of removal of lacrimal and third eyelid glands on Schirmer tear test results in cats

McLaughlin, S.A.; Brightman, A.H.; Helper, L.C.; Primm, N.D.; Brown, M.G.; Greeley, S.; McLaughlin, S.A; Brightman, A.H; Helper, L.C; Primm, N.D; Brown, M.G; Greeley, S

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Effect of removal of lacrimal and third eyelid glands on Schirmer tear test results in cats

McLaughlin, S.A.; Brightman, A.H.; Helper, L.C.; Primm, N.D.; Brown, M.G.; Greeley, S.

Journal of the American Veterinary Medical Association 193(7): 820-822

1988

ISSN/ISBN: 0003-1488

PMID: 3192460

Document Number: 315967

Schirmer tear tests I and II values for 10 healthy cats were 16.2 .+-. 3.8 mm/min and 13.2 .+-. 3.4 mm/min, respectively. Surgical removal of the lacrimal gland or the third eyelid gland from the left eye resulted in decreased Schirmer tear test-I values. Clinical signs of keratoconjunctivitis sicca were not seen until the lacrimal and third eyelid glands were removed, at which time the Schirmer tear test-I value was close to 0 mm/min. Conjunctival glands (accessory lacrimal glands of Krause and Wolfring) appeared to contribute little to tear production in these cats.