When you think of vision trouble, you might look at the issue head-on—literally. Determining how well you can see right in front of you is often the gauge for whether or not it’s time for a ...

A person with peripheral vision loss has difficulty seeing things above, below, or at the side without turning their head. This type of vision loss is also known as tunnel vision. Tunnel vision can ...

During periods of stress, the sympathetic nervous system automatically narrows the range of perceptual inputs to emphasize central vision. This perceptual narrowing is an evolutionary skill that was ...