title: 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.
abstract: The aqueous fraction of the tear film and the horizontal palpebral fissure length (HPFL) were measured in exotic and laboratory animals, specifically saffron finches (Sicalis flaveola), chestnut-bellied seed-finches (Sporophila angolensis), red-eared sliders (Trachemys scripta elegans), rats (Rattus norvegicus) and mice (Mus 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).
authors: Universidade Federal do Paraná (UFPR), Departamento de Medicina Veterinária, Rua dos Funcionários, 1540, 80035-050, Curitiba-PR, Brazil.
authors: Rogério R
authors: RR
authors: Lange
authors: Leandro
authors: L
authors: Lima
authors: Andreise C
authors: AC
authors: Przydzimirski
authors: Fabiano
authors: F
authors: Montiani-Ferreira
mesh_terms: D000818:Animals; D003941:Diagnostic Techniques, Ophthalmological / Q000662:veterinary*; D005260:Female; D046369:Finches / Q000502:physiology*; D008297:Male; D051379:Mice / Q000502:physiology*; D051381:Rats / Q000502:physiology*; D011934:Reagent Strips; D012016:Reference Values; D013045:Species Specificity; D013666:Tears / Q000737:chemistry*; D014426:Turtles / Q000502:physiology*
chemical_list: D011934:Reagent Strips
keywords: Mus musculus; Rattus norvegicus; Sicalis flaveola; Sporophila angolensis; Trachemys scripta elegans; standardized endodontic absorbent paper points tear test