Which of the following describes the convergence of the upper and lower eyelids at the lateral side?

The term that describes the convergence of the upper and lower eyelids at the lateral side is the lateral canthus. The lateral canthus is the point where the outer edges of the upper and lower eyelids meet, providing structural integrity to the eyelids and contributing to the overall function of the eye. It’s an important anatomical landmark in veterinary ophthalmology, as understanding its location is crucial for various surgical procedures and diagnosing conditions related to the eyelids and surrounding structures.

In contrast, the medial canthus refers to the convergence of the eyelids at the inner corner of the eye, while the palpebral fissure is the opening between the eyelids. The orbital rim pertains to the bony structure surrounding the eye and is not directly related to the eyelid convergence. Knowing these distinctions can help in the proper assessment of ocular conditions and treatments in veterinary practice.