While the best answer to this question may differ from person to person, the typical recommendation for adults is to have an eye exam once every 1-2 years.
Factors that may influence the recommended frequency of eye exams for adults include:
Children should typically start to have their eyes examined around the age of 6 months. A second exam is usually recommended at 3 years of age, and a third before they begin school. After the third exam, children who do not have any risk factors to their vision will often have eye exams every 2 years. If they have been prescribed corrective lenses, eye exams should be conducted at least annually.
Children may need more frequent eye exams if: