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Medical Forum / General / Vision / May 2007Is Silicone Hydrogel safe?
Hello I have been wearing Silicone Hydrogel contact lenses for the past 12 months. It has only recently occrued to me that this material is new in contact lenses (3 years old??). I wonder, is it really safe? I remember lots of negative press about silicone in the 1990's with regards to breast implants. How can we be sure Silicone Hydrogel will not have adverse affects over a long period of time, say in 20 years time? Should i go back to standard soft lenses? Proclear for example. thanks > Hello > [quoted text clipped - 12 lines] > > thanks proclear is a great lens. for overnight wear the silicone may be better due to high gas permeability. probably best to remove cls at nite anyhow.. >Hello > >I have been wearing Silicone Hydrogel contact lenses for the past 12 months. > >It has only recently occrued to me that this material is new in contact >lenses (3 years old??). I'm pretty sure it's more than 3 years old. >I wonder, is it really safe? I remember lots of negative press about >silicone in the 1990's with regards to breast implants. All of it unfounded. There has never been any actual evidence that implants caused any health problems. Lawsuits were won anyway, due to poor critical thinking skills on juries, and behind the lawyers' tables. They have, in fact, been recently re-approved by the FDA, since not one iota of evidence could be found to suggest that they are harmful. >How can we be sure Silicone Hydrogel will not have adverse affects over a >long period of time, say in 20 years time? Because silicone is utterly non-reactive with living tissue. >Should i go back to standard soft lenses? Proclear for example. Not for any of the paranoid reasons you mention above. Use what's comfortable and meets your needs.  Signature- Mike Ignore the Python in me to send e-mail. > Hello > [quoted text clipped - 12 lines] > > thanks There is a significant difference between the silicone used in breast implants and that used in contact lenses. The silicone in breast implants was a liquid that leached into the tissues. The silicone used in contact lenses is a solid and does not leach into the tissues. DrG |
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