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Paul, I'd second what Art says. I have a little to add. When I first started diving (also about seven years ago), I was wearing extended-wear disposable lenses. I asked my ophthalmologist about it (he is not a diver either) and he also said that the lack of sufficient oxygen to the eye could cause a problem over time. If I remember correctly, lack of sufficient oxygen to the eye (long term) is associated with tumors. He suggested that I sleep without them at night after diving, and also try to blow fresher air into the mask periodically during the dive. Wearing disposables *is* a good idea, since it doesn't matter as much if you lose one! I have yet to lose a contact while diving, but I always carry an extra with me just in case. A lot of people I know have lost contacts while diving. A disadvantage to using a prescription mask as an alternative is that the lenses are more likely to pop out. And if you carry a backup mask, that would have to be a prescription mask, too. At 09:35 AM 9/21/99 -0400, Paltz, Art wrote: >Hi Paul, > >I have been diving with contact lenses for about 7 years now without a >problem. I initially used non-disposable then changed to disposable ones >later. > >I initially asked my eye doctor about diving with them. He's not a diver >but what he said made sense. He said the biggest problem with contacts is >that you don't get enough oxygen to the eye. Typically the more gas >permeable the lens, the better and longer wearing the contact. He believed >that the higher partial pressure of O2 would allow more O2 through the >contact lens. Made sense to me. If you dive a lot I suggest disposable >lenses. Although I've only lost a contact once I was damn glad it was a >disposable one. My sister had one pop out into her mask while under water >years back. We were able to recover it when she got back on the boat. > >Hope this helps, >Art. > > > -----Original Message----- > From: Paul Nolan [mailto:Paul.Nolan@er*.co*] > Sent: Tuesday, September 21, 1999 7:04 AM > To: techdiver@aquanaut.com > Subject: Contact lenses and diving... > > Hi, > > I was wondering does anyone here dive with contact lenses on >or has > dived ? I've heard it is dangerous ? > > thanks, > > - Paul Nolan, > Dublin, > Ireland. > > -- > Send mail for the `techdiver' mailing list to >`techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to >`techdiver-request@aquanaut.com'. >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. ---------- Maggie, who seems to be a northeast-wreck-diving-geek and boat monkee mmowens@pa*.co* http://www.panix.com/~mmowens -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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