Kennel Club and American Kennel Club breed standard references to the visible size of the eye.

(UK) Kennel Club breed standards include the recent amendments to avoid exaggerated morphologies, denoted by underlining additions, and square brackets and inverted commas notifying deletions. N.B. Although ‘relatively’ or ‘not too large’ were added as modifiers to ‘large eyes’ in these examples, other breed standards still consider ‘large’ eyes as a desirable feature, including the Shih Tzu [42] and the Cavalier King Charles Spaniel [43] standards.Kennel Club and American Kennel Club breed standard references to the visible size of the eye.