# At what temperature will your eyeballs freeze?

**URL:** <https://boards.straightdope.com/t/at-what-temperature-will-your-eyeballs-freeze/524645>\
**Category:** Factual Questions\
**Created:** [January 12, 2010, 10:29am UTC](https://boards.straightdope.com/t/at-what-temperature-will-your-eyeballs-freeze/524645 "2010-01-12T10:29:11Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![xash](https://avatars.discourse-cdn.com/v4/letter/x/c6cbf5/32.png) [@xash](https://boards.straightdope.com/u/xash)\
**Post date:** [January 12, 2010, 10:29am UTC](https://boards.straightdope.com/t/at-what-temperature-will-your-eyeballs-freeze/524645/1 "2010-01-12T10:29:11Z")

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And what keeps them from freezing before that temperature?

This post got me wondering:

> [@The funny thing about Fahrenheit](https://boards.straightdope.com/t/the-funny-thing-about-fahrenheit/523902/32):
>
> -40 without wind is great weather for a walk. At that temperature, it’s usually sunny outside, great for the morale. The snow becomes sort of brittle and it makes a sort of a crystalline sound underfoot. I love it.

Assume no eye protection.

Corollary 1: Is there a temperature at which our eyeballs will freeze before we hit hypothermia?

Corollary 2: If our eyeballs froze, and we were still conscious, what would be the resultant effect on our vision?

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