Optic nerve hypoplasia predisposition is noted in which breed?

Optic nerve hypoplasia predisposition is noted in which breed?

• A. Miniature poodles
• B. Maine Coon cats
• C. Labrador retrievers
• D. Beagles

Answer: (A)

Optic nerve hypoplasia is a congenital underdevelopment of the optic nerve fibers, so the optic nerve head appears smaller and often Paler than normal on examination. This condition reflects a developmental failure during retinal ganglion cell axon formation and entry into the optic nerve, which can lead to reduced visual function. Breed predisposition means some breeds have a higher likelihood of this anomaly due to genetics or early developmental factors. Among dogs, miniature poodles are repeatedly noted in ophthalmology literature as having a higher incidence of optic nerve hypoplasia, making them the best-supported choice for this association. The other breeds listed do not have as well-established breed-specific risks documented for this condition (and one option is a cat breed, which is not a typical canine predisposition).

Optic nerve hypoplasia is a congenital underdevelopment of the optic nerve fibers, so the optic nerve head appears smaller and often Paler than normal on examination. This condition reflects a developmental failure during retinal ganglion cell axon formation and entry into the optic nerve, which can lead to reduced visual function.

Breed predisposition means some breeds have a higher likelihood of this anomaly due to genetics or early developmental factors. Among dogs, miniature poodles are repeatedly noted in ophthalmology literature as having a higher incidence of optic nerve hypoplasia, making them the best-supported choice for this association. The other breeds listed do not have as well-established breed-specific risks documented for this condition (and one option is a cat breed, which is not a typical canine predisposition).