A vision screening, also called an eye test, is a brief exam that looks for potential vision problems and eye disorders. Vision screenings are often done by primary care providers as part of a child’s regular checkup. Sometimes screenings are given to children by school nurses.
Vision screening is not used to diagnose vision problems. If a problem is found on a vision screening, your or your child’s provider will refer you to an eye care specialist for diagnosis and treatment. This specialist will do a more thorough eye test. Many vision problems and disorders can be successfully treated with corrective lenses, minor surgery, or other therapies.
Diagnostic ultrasound, also called sonography or diagnostic medical sonography, is an imaging method that uses sound waves to produce images of structures within your body. The images can provide valuable information for diagnosing and directing treatment for a variety of diseases and conditions.
Most ultrasound examinations are done using an ultrasound device outside your body, though some involve placing a small device inside your body.
Medical tests can help detect a condition, determine a diagnosis, plan treatment, check to see if treatment is working, or monitor the condition over time. A doctor may order these tests as part of a routine checkup, to check for certain diseases and disorders, or to monitor your health.
