Snake spectacle vessel permeability to sodium fluorescein.

Objective: Assess vascular permeability of the snake spectacle to sodium fluorescein during resting and shedding phases of the ecdysis cycle.

Animal Studied: Ball python (Python regius).

Procedures: The snake was anesthetized, and spectral domain optic coherence tomography was performed prior to angiographic procedures.

Effect of optical defocus on performance of dogs involved in field trial competition.

Objective: To measure the effect of induced myopia on field trial performance in dogs.

Animals: 7 Labrador Retrievers and 1 Chesapeake Bay Retriever trained in field trial competition.

Procedures: Dogs were commanded to retrieve targets at 137.

The use of computed tomographic three-dimensional reconstructions to develop instructional models for equine pelvic ultrasonography.

Ultrasonography has gained increased utility to diagnose pelvic fractures in horses; however, internal pelvic contours can be difficult to appreciate from external palpable landmarks. We developed three-dimensional (3D) simulations of the pelvic ultrasonographic examination to assist with translation of pelvic contours into two-dimensional (2D) images. Contiguous 1mm transverse computed tomography (CT) images were acquired through an equine femur and hemipelvis using a single slice helical scanner.