If you've ever tried to make out something that was really far away, odds are you squinted while doing it. It's basically involuntary! But does narrowing your field of vision really help you see things better? Hosted by: Hank Green SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Kevin Carpentier, Eric Jensen, Matt Curls, Sam Buck, Christopher R Boucher, Avi Yashchin, Adam Brainard, Greg , Alex Hackman, Sam Lutfi, D.A. Noe, Piya Shedden, Scott Satovsky Jr.Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: www.ccmr.cornell.edu/faqs/why-does-squinting-help-people-with-vision-problems-see-better/ journals.lww.com/optvissci/Abstract/2003/11000/What_are_the_Visual_Benefits_of_Eyelid_Squinting_.9.aspx www.nature.com/articles/ncomms15683 meded.ucsd.edu/clinicalmed/eyes.htm www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/refractive-errors scienceline.ucsb.edu/getkey.php?key=2577 jkms.org/DOIx.php?id=10.3346/jkms.2017.32.5.850# iovs.arvojournals.org/article.aspx?articleid=2166618 www.casewatch.net/ftc/news/1993/natural-vision.shtml journals.iium.edu.my/ijahs/index.php/IJAHS/article/view/105

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