Final answer:
A person with 20/10 vision can see at 10 feet what a person with normal vision (20/20) sees at 20 feet, indicating better visual acuity than normal.
Step-by-step explanation:
If someone has 20/10 vision, it means that what others can see at 20 feet, that person can see at 10 feet, which is better than normal vision. When we refer to 20/20 vision, this is considered the standard for normal visual acuity, meaning that the smallest letters that a person can see at a 20-foot distance could be seen by a person with normal acuity from the same distance. Therefore, a person with 20/10 vision can see objects at 20 feet that a person with normal vision would need to approach to within 10 feet in order to see with the same level of clarity. This high level of visual acuity may be beneficial in situations where precise visual detail is necessary, such as in professions that involve fine work or detailed inspection.