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â¢ People ages 20 to 40 should have an eye exam at least every five years unless there are vision changes, pain, flashes of light, new floaters, injury or tearing. Immediate care is needed to address any of those symptoms.
The cost of an eye exam can vary significantly, based on where you get your exam and other factors, including: 1  Whether the exam is performed by an optometrist or an ophthalmologist. 2  The tests that are included in the exam. 3  Whether the exam includes a contact lens fitting or other contact lens-related services.dults. To maintain a lifetime of healthy vision, the AOA recommends a comprehensive eye exam every two years for adults ages 18 to 60, and annual exams for seniors age 61 and older. At risk adults should have more frequent exams.