Optic nerve hypoplasia is characterized by?

Optic nerve hypoplasia is characterized by?

• A. An abnormally large nerve that makes more connections between eyes and brain
• B. An abnormally small nerve that makes fewer connections between eyes and brain
• C. A normal optic nerve
• D. A nerve with increased conduction

Answer: (B)

Optic nerve hypoplasia means the optic nerve didn’t develop to its full size, so it has fewer retinal ganglion cell axons and a smaller optic nerve. With fewer fibers, there are fewer connections from the eye to the brain. That’s why the description that best fits is an abnormally small nerve with fewer connections between eyes and brain. The other descriptions don’t fit: an abnormally large nerve would imply more fibers; a normal nerve isn’t hypoplastic; and increased conduction isn’t characteristic of a hypoplastic, underdeveloped nerve.

Optic nerve hypoplasia means the optic nerve didn’t develop to its full size, so it has fewer retinal ganglion cell axons and a smaller optic nerve. With fewer fibers, there are fewer connections from the eye to the brain. That’s why the description that best fits is an abnormally small nerve with fewer connections between eyes and brain.

The other descriptions don’t fit: an abnormally large nerve would imply more fibers; a normal nerve isn’t hypoplastic; and increased conduction isn’t characteristic of a hypoplastic, underdeveloped nerve.