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Long and Short Term Effects of Sleeping in Contacts

This is a discussion on Long and Short Term Effects of Sleeping in Contacts within the General Eye Health forums; OK, we all know that sleeping in contact lenses not designed for overnight use is ...


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Old 02-06-2008, 01:23 PM
Contact Lenses Forum - Bachelors Degree
 
Join Date: Dec 2007
Posts: 407
Default Long and Short Term Effects of Sleeping in Contacts

OK, we all know that sleeping in contact lenses not designed for overnight use is a bad idea. It seems so obvious that no one asks why.
Well, I'm asking why.
Now, I'm the type of person who does what I'm told, so I'm not going to do anything against professional medical advice. So, I'd like to see it here posted in black and white. What are the long- and short-term effects of sleeping in contact lenses that aren't over night lenses?
Thanks!
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Old 02-14-2008, 01:12 PM
Contact Lenses Forum - Bachelors Degree
 
Join Date: Dec 2007
Posts: 636
Default Long and Short Term Effects of Sleeping in Contacts

Ready?

Sleeping in contacts that were not designed for that greatly reduces O2 to the cornea. 3 things happen in the SHORT term to increase your chances of corneal infection (ulcer) by about 800%:

1) Your eye has bacteria in it all of the time. When a lens is stationary on the eye without tears circulating, you are trapping bacteria on your cornea for the entire duration of the extended wear, giving them a chance to take hold
2) Create a low oxygen environment that bacteria thrive in
3) Causing corneal swelling that allows #1 & #2 to be more dangerous
its just a bad idea. Its like running a stop sign. You can do it a few times & get lucky, but if you keep doing it, odds are eventually you'll get hit.

LONG TERM sleeping in low oxygen contacts causes all kinds of permanent damage: neovascularization, corneal exhaustion syndrome, etc etc
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Old 10-27-2009, 04:43 PM
Contact Lenses Forum - Bachelors Degree
 
Join Date: Dec 2007
Posts: 407
Default

Quote:
Originally Posted by Scienceguy View Post
Ready?

Sleeping in contacts that were not designed for that greatly reduces O2 to the cornea. 3 things happen in the SHORT term to increase your chances of corneal infection (ulcer) by about 800%:

1) Your eye has bacteria in it all of the time. When a lens is stationary on the eye without tears circulating, you are trapping bacteria on your cornea for the entire duration of the extended wear, giving them a chance to take hold
2) Create a low oxygen environment that bacteria thrive in
3) Causing corneal swelling that allows #1 & #2 to be more dangerous
its just a bad idea. Its like running a stop sign. You can do it a few times & get lucky, but if you keep doing it, odds are eventually you'll get hit.

LONG TERM sleeping in low oxygen contacts causes all kinds of permanent damage: neovascularization, corneal exhaustion syndrome, etc etc
Well, there it is folks. Some very good reasons why you should not wear your contact lenses beyond what they were designed for. I wonder if there is some way we can show this posting to every person who comes to Lens 101?
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