Some research suggests that the human eye may be able to detect higher levels of what’s called “flicker rate” than previously thought. A higher frequency usually means less flicker. When you’re using a computer monitor with a refresh rate of 60 Hz, your brain processes the light from the monitor as one steady stream, rather than a series of constant flickering lights. One frame per second is roughly equivalent to 1 Hz. If your desktop monitor’s refresh rate is 60 Hz - which is standard - that means it updates 60 times per second. The refresh rate is the number of times that your monitor updates with new images each second. Televisions and computers in your home likely have a faster “refresh rate” that affects what you’re seeing and how you’re seeing it. That means that 24 images flash past your eyes every single second.īut not everything that you see will have that same frames per second rate. Movies shot on film are shot at a 24-frame-per-second rate. We are fairly accustomed to watching videos or shows that are played at a 24- to 30-frames-per-second rate. When you’re watching a baseball game from the stands, or you’re keeping an eye on a child riding a bike down your sidewalk, your eyes - and your brain - are processing the visual input as one continual stream of information.īut if you’re watching a movie on the television, catching a YouTube video on your computer or even playing a video game, it’s a little different. The optic nerve carries the electrical signals to your brain, which converts the signals into images.Then, photoreceptor cells at the back of your eye turn the light into electrical signals, while the cells known as rods and cones pick up on motion.The lens then focuses the light on a point at the very back of your eye in a place called the retina.Light passes through the cornea at the front of your eye until it hits the lens.
First, it’s important to remember how you’re able to see images in the first place.
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