Test Your knowledge (Eye Case)

A 3yo female working Springer spaniel is presented to your practice one day after a field trial, with acute onset right ocular pain and discharge.

Q1: Describe the abnormalities seen, and give the most likely diagnosis.

Q2: What is the most likely aetio-pathogenesis for this condition in this case?

Q3: List the treatment options.

(Answers below image)

A1: Profuse mucopurulent ocular discharge, chemosis and corneal oedema, associated with a large corneal abnormality which is most likely an area of corneal stromal collagenolysis (‘melting’ corneal ulceration). 

A2: Traumatic injury to the eye, followed by infection with a bacteria associated with corneal melting (Pseudomonas aeruginosa or beta-haemolytic streptococcus)

A3: Topical treatment with anti-collagenase (topical serum, EDTA, acetylcysteine), appropriate topical and systemic antibiotics (swab and Diffquik staining/ bacterial culture recommended), systemic analgesia, conjunctival grafting if progressive