Children: Children should have their first eye exam at 6 months of age, another exam at age 3, and again before starting school. After that, they should have a comprehensive eye exam every 1-2 years, or as recommended by their eye doctor.

Adults: Adults aged 18-60 with no symptoms or risk factors should have a comprehensive eye exam every 2 years. Adults with risk factors for eye disease, such as diabetes, high blood pressure, or a family history of eye disease, should have an exam more frequently, as recommended by their eye doctor.

Seniors: Adults aged 61 and older should have a comprehensive eye exam every year, as they are at higher risk for age-related eye diseases such as cataracts, glaucoma, and macular degeneration.

It's important to note that these are general guidelines and may vary based on individual circumstances. If you experience any changes in your vision, such as blurred vision, double vision, or difficulty seeing at night, or if you have any eye pain or discomfort, you should see an eye doctor as soon as possible. Additionally, if you wear glasses or contact lenses, you should have a regular check-up with your eye doctor to ensure that your prescription is up-to-date and that your lenses are fitting properly.