Ultrasonography of the eye and orbit
Plummer, C.E. and Reese, D.J. (2014) Ultrasonography of the eye and orbit. In: Kidd, J.A., Lu, K.G. and Frazer, M.L., (eds.) Atlas of Equine Ultrasonography. John Wiley & Sons, Ltd, Chichester, UK, pp. 443-453.
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With development of portable ultrasound units, ultrasonography has grown significantly in many aspects of equine practice. Ocular ultrasonography is indicated in cases of corneal edema, cataracts, or intraocular hemorrhage, because the normally clear ocular media has become opaque and visualization of the interior structures of the globe is restricted. Technological advancements have introduced various methods of ultrasonography to the field of ophthalmology. Color Doppler technique is used to visualize blood vessels and their flow characteristics within the eye and orbit. Ocular and orbital ultrasonography is usually easily performed in the standing horse following sedation, an auriculopalpebral nerve block, and the application of topical anesthetic (e.g. proparacaine, tetracaine) to the ocular surface. This chapter presents images of ultrasonographic changes in the abnormal eye. Exophthalmos and trauma are the most common indications for orbital ultrasonography.
|Publication Type:||Book Chapter|
|Murdoch Affiliation:||School of Veterinary and Life Sciences|
|Publisher:||John Wiley & Sons, Ltd|
|Copyright:||© 2014 by John Wiley & Sons, Ltd|
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