Common Ophthalmic Conditions in Popular Dog Breeds in Japan: Insights From a Survey of 105 Veterinarians Practicing Ophthalmology.

Breed-specific ophthalmic screening and genetic testing protocols needed in Japan.

This survey of 105 Japanese veterinary ophthalmologists identified breed-specific ocular disease patterns in Japan's canine population. Toy Poodles, Shiba Inus, and Shih Tzus were most frequently presented for ophthalmic complaints, though breed popularity differed from Japanese Kennel Club statistics. Key findings included cataracts across multiple breeds, progressive retinal atrophy in Miniature Dachshunds and Toy Poodles, glaucoma in Shiba Inus, ocular surface diseases in Shih Tzus, and corneal endothelial dystrophy in Chihuahuas. The survey revealed limited implementation of preventive screening (14% for puppies, 25% for adults) and variable adoption of diagnostic modalities including gonioscopy (69%), electroretinography (69%), optical coherence tomography (23%), and DNA testing (31%). These findings emphasize the need for standardized screening protocols, enhanced diagnostic capabilities, and expanded genetic testing to improve disease management in Japanese companion dogs.

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