Final answer:
Moderate vision impairment refers to a significant but not severe level of vision loss, typically falling within the range of 20/70 to 20/200.
Step-by-step explanation:
Moderate vision impairment refers to a level of vision loss that is considered significant but not severe. It typically falls within the range of 20/70 to 20/200 on the Snellen chart. A person with moderate vision impairment may have difficulty reading small print or seeing distant objects clearly without the aid of glasses or contact lenses.