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From: speaker@ttidcb.UUCP (Kenneth Speaker)
Newsgroups: net.med,net.consumers
Subject: Re: Hard lens advise request
Message-ID: <557@ttidcb.UUCP>
Date: Mon, 25-Nov-85 13:57:05 EST
Article-I.D.: ttidcb.557
Posted: Mon Nov 25 13:57:05 1985
Date-Received: Thu, 28-Nov-85 04:02:17 EST
References: <697@leadsv.UUCP>
Reply-To: speaker@ttidcb.UUCP (Kenneth Speaker)
Organization: Transaction Technology, Inc. (CitiCorp), Santa Monica
Lines: 27
Xref: watmath net.med:2848 net.consumers:3476

In article <697@leadsv.UUCP> chris@leadsv.UUCP (Chris Salander) writes:
>
>	I have gone for years without considering contacts because they
>could not be used for astigmatism.  Now that has changed, but I have heard
>that the sort of contacts that you must wear must keep a specific 
>orientation; i.e. you cannot but them in just any way.  They are suppose
>to be heavier on one end so that that end is always down, keeping them 
>oriented properly.  This is the story I have heard.  Have people found this
>to be true?  (And how can you stand to put things on your eyes?)
>
>			- Chris Salander

Yes, the lenses are thicker (hence heavier) on the bottom.  This tends
to keep them oriented properly.  This mechanism is good for correcting up
to about 2.5 diopters of astigmatism.  I have a little over 2 diopters in
each eye and the correction is less than ideal.  

The problem is that you are not always oriented vertically!  Try to read
in bed, with your head proped (at an angle) on your hand.  Or go to the 
gym and do some "roman chairs" or decline presses, where you invert the
body.  Try standing up immediatly after doing that invertion!  But, I have
VERY sensitive eyes and have never been able to wear hard lenses, gas per-
miable or otherwise, so I put up with it.  

How can you stand to put things on your eyes?  You get used to it....

--Kne