Ophthalmic Examination
Basic Information 
Overview and Goal(s)
Appropriate diagnostic methods to examine equine eyes are reviewed and described.
Preparation: Important Checkpoints
• Initial examination of the horse eye should take place in adequate illumination, prior to tranquilization.
Facial, orbital, and eyelid symmetry, the presence of ocular discharge and/or blepharospasm, and cranial nerve evaluation are all performed. Specifically, cranial nerves II, III, IV, V, VI, and VII are evaluated. These are assessed through pupillary light and menace response (CN II, III, and VII evaluation), maze testing, globe position and mobility (CN III, IV, VI), sensation of ocular and adnexal structures (CN V), and eyelid position and function (CN VII). To accurately evaluate direct and consensual pupillary light responses, a bright, focal light source and a darkened examination area are often required.Only gold members can continue reading. Log In or Register to continue
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