Ask a question about the given content.
Eyeglasses use lenses to help people see better.
"What do eyeglasses use to improve a person's vision?"
Complete the following task based on the instruction and optional input provided.### Instruction:
Ask a question about the given content.

### Input:
Eyeglasses use lenses to help people see better.

### Output:
"What do eyeglasses use to improve a person's vision?"