Comprehensive Eye Exams vs. Vision Screenings

Vision screening programs are intended to identify children or adults who may have undetected vision problems. If the screening indicates a vision problem, they are referred for further evaluation. Screenings can take many forms. Often schools provide periodic vision screenings for their students. A pediatrician or other primary care physician may do a vision screening as part of a school physical. When applying for a driver's license, your vision will likely be screened. Vision screenings are often part of local health fairs put on by hospitals, social service agencies or groups like Lions and Elks clubs.

Vision screenings can uncover some vision problems, but they can miss a lot too. In some cases, vision screening may actually inhibit the early diagnosis of vision problems. Screenings can create a false sense of security for people who are then less likely to receive treatment for and the issue could become worse.

The information obtained from a vision screening is comparable to the information obtained from a blood pressure measurement. A patient's blood pressure may be in normal range, but that doesn't mean that you do not have other health problems. It's a single measure of one aspect of your overall health. Just as you need a physical to evaluate your total health, only a comprehensive eye and vision examination can evaluate your overall eye health and vision status.

How is a comprehensive eye examination different from a vision screening?

Specialized equipment and procedures used in an eye exam are needed to adequately evaluate eyes and vision.

Only a doctor of optometry or ophthalmologist can conduct a comprehensive eye and vision examination. These doctors have the specialized training necessary to make a definitive diagnosis and prescribe treatment.

Vision screening programs can't substitute for regular professional vision care. Comprehensive eye examinations are the only effective way to confirm or rule out any eye disease or vision problem.