Final answer:
A vision of 20/10 means that the person can see at 20 feet what a person with normal vision can see at 10 feet.
Step-by-step explanation:
The term 20/10 refers to visual acuity, which is a measurement of how well a person can see. In this case, a vision of 20/10 means that the person can see at 20 feet what a person with normal vision can see at 10 feet. This indicates superior visual acuity, as the person can see objects with greater clarity and detail at a farther distance.