Final answer:
The Jaeger reading card is used to test near-distance vision acuity and determine the closest distance at which a person can see objects clearly.
Step-by-step explanation:
The near-distance vision acuity examination using a Jaeger reading card is given to test a person's ability to see objects clearly at close distances. The Jaeger reading card consists of paragraphs with varying font sizes, which are used to determine the smallest letters a person can read at a specific distance.
For example, if a person can read a particular paragraph on the Jaeger card at a distance of 20 centimeters, but not at a greater distance, it indicates that their near-distance vision is limited to 20 centimeters.
Therefore, the Jaeger reading card is used to evaluate near-distance visual acuity and determine the closest distance at which a person can see objects clearly.