The Eye of the Bottlenose Dolphin (Tursiops truncatus) Evaluated by B Mode Ultrasonography

Publication Type:Journal Article
Year of Publication:1995
Authors:Cartee, RE, Brosemer, K, Ridgway, SH
Journal:Journal of Zoo and Wildlife Medicine
Volume:26
Pagination:414-421
Date Published:1995
ISBN Number:10427260
Keywords:Tursiops truncatus
Abstract:

The B mode ultrasonographic images of bottlenose dolphin (Tursiops truncatus) eyes from cadavers and live animals were measured and compared with physical measurements of cadaver eyes. The average sonographic diameters of the cadaver eyes were 2.34 cm × 2.0 cm (cranial--caudal × dorsal-ventral) with an internal circumference of 7.11 cm. Physical measurements of these diameters were not significantly different (2.51 cm × 2.2 cm). Ultrasound measurements of cadaver eye tunic thickness were significantly larger than physical measurements of the same eyes. In live dolphins, eye diameters measured sonographically were not significantly different (2.55 cm × 2.32 cm) than either ultrasound or physical measurements. The optical axis diameter was 1.80 cm, and the circumference was 7.30 cm in live dolphins. Comparisons of circumference showed no significant difference between cadaver and live dolphin eye measurements. B mode ultrasonographic ocular morphometry may be useful once baseline values have been established.

URL:http://www.jstor.org/stable/20095500
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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith