Atresia of the nasolacrimal orifice in two thoroughbreds.

The study discusses two cases of thoroughbreds with bilateral atresia of the nasolacrimal orifice that were successfully treated by creating a fistula between the duct and the nasal cavity.

Introduction

• The research focuses on two cases involving thoroughbreds that were suffering from bilateral atresia of the nasolacrimal orifice. Atresia of the nasolacrimal orifice is a condition where the opening that allows for the drainage of tears into the nasal cavity is blocked or closed.

Presenting Symptoms

• The primary symptom in both cases was a persistent ocular discharge. However, there was a difference in the characteristics of the discharge in the two cases. In one case, the discharge was clear, whereas in the other case, it was purulent, that is, it contained pus.

Treatment

• The researchers treated both cases by creating a fistula. This is a new passage that is surgically created to allow for fluid flow. The fistula was created between the distal extremity of the blind ending duct and the nasal cavity.

Outcome

• The treatment method used was successful in both cases, meaning it effectively addressed the presenting problem of persistent ocular discharge. The research, therefore, suggests that creating a fistula can be an effective treatment option for thoroughbreds with atresia of the nasolacrimal orifice.