Jump to content

  • Log in with Facebook Log in with Twitter Log in with Windows Live Log In with Google      Sign In   
  • Create Account

Submit your paper to J Biol Methods today!
Photo
- - - - -

About water and the eye


  • Please log in to reply
3 replies to this topic

#1 amrit1

amrit1

    member

  • Members
  • Pip
  • 4 posts
0
Neutral

Posted 18 October 2004 - 02:46 PM

I was wondering........ Please answer!!!
why do your eyes sting and become red when you get pure, fresh water in them, but yet, they dont hurt at all (as anyone who wears contact lenses will attest) when you put "eye drops" (contact lens rinsing solution, Visine..) in them?

#2 zienpiggie

zienpiggie

    Veteran

  • Active Members
  • PipPipPipPipPipPipPipPipPipPip
  • 139 posts
3
Neutral

Posted 18 October 2004 - 07:44 PM

I think there might be something to do with the difference in osmomality, I think ;)

#3 bob1

bob1

    Thelymitra pulchella

  • Global Moderators
  • PipPipPipPipPipPipPipPipPipPip
  • 5,833 posts
415
Excellent

Posted 18 October 2004 - 07:53 PM

I agree with zienpiggie... Osmolality is the answer... eyedrop solution is approx 300 milliOsmol which is roughly the same as tears, whereas pure water is 0 milliOsmol, thus you get ions moving out of the eye and into solution in the water causing irritation in the eye.

#4 amrit1

amrit1

    member

  • Members
  • Pip
  • 4 posts
0
Neutral

Posted 18 October 2004 - 10:19 PM

thanks guys!!!
This has helped me alot




Home - About - Terms of Service - Privacy - Contact Us

©1999-2013 Protocol Online, All rights reserved.