# really freaky **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [August 22, 2000, 3:22am UTC](https://boards.straightdope.com/t/really-freaky/30259 "2000-08-22T03:22:25Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![The\_Ryan](https://avatars.discourse-cdn.com/v4/letter/t/7feea3/32.png) [@The\_Ryan](https://boards.straightdope.com/u/The_Ryan)\ **Post date:** [August 22, 2000, 3:22am UTC](https://boards.straightdope.com/t/really-freaky/30259/1 "2000-08-22T03:22:25Z")
Ever realized that you can have one pupil dialated more than the other? Go into a dark room, wait about twenty minutes as your eyes adjust, close one eye, and then walk into a brightly lit room, and look around for about a minute. Now walk back into the dark room. The eye you closed will still be adjusted to the dark, and so you will be able to see out of it. The other one, however, will take several minutes to adjust, during which time you will be able to see nearly nothing out of that eye. No matter how much I told myself “It’s just taking time to adjust”, there was a small part of me saying “I’m going blind!” ---
**Author:** ![xizor](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/xizor/32/102_2.png) [@xizor](https://boards.straightdope.com/u/xizor)\ **Post date:** [August 22, 2000, 3:30am UTC](https://boards.straightdope.com/t/really-freaky/30259/2 "2000-08-22T03:30:14Z")
This trick was something we were taught in basic training. It is used when a flare goes off at night, you look around with one eye, utilizing the light of the flare, then when it goes out, you still have night vision in the other eye to continue what you are doing. It is a neat effect. ---
**Author:** ![nevermore](https://avatars.discourse-cdn.com/v4/letter/n/a587f6/32.png) [@nevermore](https://boards.straightdope.com/u/nevermore)\ **Post date:** [August 22, 2000, 3:30am UTC](https://boards.straightdope.com/t/really-freaky/30259/3 "2000-08-22T03:30:34Z")
get a hobby. ---
**Author:** ![chique](https://avatars.discourse-cdn.com/v4/letter/c/4491bb/32.png) [@chique](https://boards.straightdope.com/u/chique)\ **Post date:** [August 22, 2000, 4:27am UTC](https://boards.straightdope.com/t/really-freaky/30259/4 "2000-08-22T04:27:58Z")
Whooooooooooa, _dude_!! ---
**Author:** ![alansmithee](https://avatars.discourse-cdn.com/v4/letter/a/9fc348/32.png) [@alansmithee](https://boards.straightdope.com/u/alansmithee)\ **Post date:** [August 22, 2000, 4:42am UTC](https://boards.straightdope.com/t/really-freaky/30259/5 "2000-08-22T04:42:53Z")
Can’t believe I was bored enough to try that. ---
**Author:** ![Brood\_McEto](https://avatars.discourse-cdn.com/v4/letter/b/65b543/32.png) [@Brood\_McEto](https://boards.straightdope.com/u/Brood_McEto)\ **Post date:** [August 22, 2000, 6:15am UTC](https://boards.straightdope.com/t/really-freaky/30259/6 "2000-08-22T06:15:28Z")
I learned that in some Hardy boys book I read years ago. My girlfriends left eye is always dilated more than the right. I don’t know why. ---
**Author:** ![DeathLlama](https://avatars.discourse-cdn.com/v4/letter/d/f07891/32.png) [@DeathLlama](https://boards.straightdope.com/u/DeathLlama)\ **Post date:** [August 22, 2000, 6:20am UTC](https://boards.straightdope.com/t/really-freaky/30259/7 "2000-08-22T06:20:50Z")
Dude, you’ve got way too much free time. ---
**Author:** ![Broken\_Doll](https://avatars.discourse-cdn.com/v4/letter/b/bbce88/32.png) [@Broken\_Doll](https://boards.straightdope.com/u/Broken_Doll)\ **Post date:** [August 22, 2000, 8:35am UTC](https://boards.straightdope.com/t/really-freaky/30259/8 "2000-08-22T08:35:05Z")
I also have one pupil larger than the other. Weird. I’ve always had it. ---
**Author:** ![Max\_the\_Immortal](https://avatars.discourse-cdn.com/v4/letter/m/6de8d8/32.png) [@Max\_the\_Immortal](https://boards.straightdope.com/u/Max_the_Immortal)\ **Post date:** [August 22, 2000, 8:50am UTC](https://boards.straightdope.com/t/really-freaky/30259/9 "2000-08-22T08:50:28Z")
You can actually do a neat pavlovian conditioning thing to yourself for a neat trick. Get a whistle and a flashlight. Choose an eye, right or left. Then, over a long period of time, perodically blow the whistle and shine the flashlight into your eye of choice (always the same one) simultaneously. Your brain will begin to associate the sound with the bright light. Eventually, you’ll be able to blow the whistle without shining the flashlight in your eye and have your iris contract. Neat, huh? ---
**Author:** ![Damhna](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@Damhna](https://boards.straightdope.com/u/Damhna)\ **Post date:** [August 22, 2000, 11:13am UTC](https://boards.straightdope.com/t/really-freaky/30259/10 "2000-08-22T11:13:38Z")
You know that messing around with this trcik is what happened to David Bowie’s eyes dontcha? Go on find a photo of Major Tom and look close to see what I mean ---
**Author:** ![fierra](https://avatars.discourse-cdn.com/v4/letter/f/58956e/32.png) [@fierra](https://boards.straightdope.com/u/fierra)\ **Post date:** [August 22, 2000, 11:20am UTC](https://boards.straightdope.com/t/really-freaky/30259/11 "2000-08-22T11:20:23Z")
I knew this!!! I was in my mom’s car & the shade from the sunvisor only covered one eye - and being the passenger seat, it had one of those little mirrors on it. My eyes are hazel, and with this effect, one looked green & one looked amber. When I looked at my eyes closely later, I realised that the pigment was sort of banded, so when one pupil was dialted & one very contracted, they looked different colours. It was the first time I realised that hazel is orange & green mixed, but obvious when I thought about it.