If you’ve had a vision screening recently, you might say, “My vision is fine! I don’t need a comprehensive eye exam.” But a vision screening provides a limited perspective on the overall health of your eyes. It’s a bit like getting your blood pressure checked and not getting the rest of your annual physical. You’ll have useful information. But it’s not the whole picture.
Vision screenings only test your ability to see clearly in the distance. This is called visual acuity. It's just one factor in your overall vision. Others include color vision, peripheral vision, and depth perception. The screening also doesn’t evaluate how well the eyes focus up close or work together. Most importantly, it doesn’t give any information about the health of the eyes.