title: Rabbits' eye globe sonographic biometry.
abstract: OBJECTIVE
  To measure intraocular structures in New Zealand White breed rabbits (Oryctolagus cuniculus Linnaeus, 1758) using A-mode and B-mode ultrasound with a 20 MHz transducer.
  
  
  METHODS
  In this study, the eyes of 15 rabbits were evaluated for determination of intraocular measurements using an ophthalmic ultrasound unit able to operate in both A and B-modes. The distances from the cornea to the anterior capsule of the lens (D1), from the anterior capsule of the lens to the posterior capsule of the lens (D2), from the posterior capsule of the lens to the retina (D3) and the complete length of the eye, which corresponds to the distance from the cornea to the retina (D4) were taken.
  
  
  RESULTS
  The mean values obtained were 2.70 mm (± 0.22 mm) for D1, 7.32 mm (± 0.40 mm) for D2, 7.10 mm (± 0.45 mm) for D3 and 17.12 mm (± 0.41 mm) for D4. Statistical analyses using the Student's t-test showed that there were no differences between the eyes.
  
  
  CONCLUSIONS
  The study was feasible without the need of pharmacological restraint and yielded normal mean values for ocular sonographic biometry in rabbits.
authors.affiliation: Department of Veterinary Clinic and Surgery, College of Agricultural and Veterinarian Sciences, Sao Paulo State University, Jaboticabal, SP, Brazil.
authors.forename: Maria Carolina
authors.initials: MC
authors.lastname: Toni
authors.forename: Adriana Érica Wilkes Burton
authors.initials: AÉ
authors.lastname: Meirelles
authors.forename: Fábio Nelson
authors.initials: FN
authors.lastname: Gava
authors.forename: Aparecido Antônio
authors.initials: AA
authors.lastname: Camacho
authors.forename: José Luiz
authors.initials: JL
authors.lastname: Laus
authors.forename: Júlio Carlos
authors.initials: JC
authors.lastname: Canola
mesh_terms: D000818:Animals; D005123:Eye / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D011817:Rabbits / Q000033:anatomy & histology*; D014463:Ultrasonography