Astigmatism is a common condition that causes blurred vision. Less common is actually understanding what can cause astigmatism, as well as how to correct it. Here are the steps shooters with astigmatism must take to improve sight picture—especially with optics.
Is your brain too smart for its own good? Perceptual fading, a.k.a. “Troxler effect” occurs when an object vanishes from visual consciousness.