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What Causes Red Eye In Photos?

October 17, 2016•3 min

How can a camera's flash make your eyes glow red? Tune in to learn how it works -- and how to prevent it.Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices