Ocular licking between canines is a behavior involving one dog using its tongue to moisten and groom the eye area of another. This action can vary in intensity and duration, ranging from a quick swipe to a prolonged cleaning. An example might be observed when a younger dog licks the eyes of an older pack member.
This behavior likely serves multiple purposes, including social bonding and hygiene maintenance. Mutual grooming, in general, strengthens pack cohesion and reinforces social hierarchies. From a hygienic perspective, licking could remove debris or irritants from the eye area, potentially alleviating discomfort and preventing minor infections. Historically, such grooming practices would have been crucial for survival in the wild, where veterinary care was unavailable.