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Reference values for the production of the aqueous fraction of the tear film measured by the standardized endodontic absorbent paper point test in different exotic and laboratory animal species
Author(s) -
Lange Rogério R.,
Lima Leandro,
Przydzimirski Andreise C.,
MontianiFerreira Fabiano
Publication year - 2014
Publication title -
veterinary ophthalmology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.594
H-Index - 50
eISSN - 1463-5224
pISSN - 1463-5216
DOI - 10.1111/vop.12038
Subject(s) - chemistry , anatomy , biology
The aqueous fraction of the tear film and the horizontal palpebral fissure length ( HPFL ) were measured in exotic and laboratory animals, specifically saffron finches ( S icalis flaveola ), chestnut‐bellied seed‐finches ( S porophila angolensis ), red‐eared sliders ( T rachemys scripta elegans ), rats ( R attus norvegicus ) and mice ( M us musculus ). These species possess small eyes making it difficult to perform the typical Schirmer tear test. Measurement of the aqueous fraction of the tear was performed using the standardized endodontic absorbent paper point tear test ( PPTT ), accomplished with manual restraint by a single operator. The following results were obtained: saffron finches ( n = 42)— HPFL (4.46 ± 0.09 mm) and PPTT (5.10 ± 0.26 mm); chestnut‐bellied seed‐finches (n = 38)— HPFL (4.77 ± 0.05 mm) and PPTT (4.11 ± 0.34 mm); red‐eared sliders ( n = 56)— HPFL (8.59 ± 0.08 mm) and PPTT (8.79 ± 0.38 mm); rats (n = 60)— HPFL (6.45 ± 0.09 mm) and PTT (6.18 ± 2.06 mm); and mice (n = 22)— HPFL (3.59 ± 0.27 mm) and PPTT (4.39 ± 1.45 mm).