Berkeley CSUA MOTD:Entry 11940
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2025/04/04 [General] UID:1000 Activity:popular
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2004/1/26-27 [Health/Eyes] UID:11940 Activity:moderate
1/25    My doctor says he can lessen astigmatism with glasses but not with
        regular contacts (both do nearsight but only one does astigmatism).
        First of all, I've always thought both were the same. Secondly,
        how come contacts don't lessen astigmatism?
        \_ correction of astigmatism requires a lense not be rotationally
           symmetric: there must be some special orientation.  Glasses are
           of course always fixed in their orientation, but contacts are
           generally at a random orientation. I think there are actually
           expensive contacts with weights on one edge that can correct
           astigmatism.
                \_ Ahhh I see... so is this where "axis" comes in play when
                   they put in axis, cylinder, etc in the prescription?
                   \_ "Ahhh I see", you're so funny!
                        \_ uh, never heard of a pun?
                           \_ yes, that's what I thought was funny.  never
                              heard of humor and enjoying it?
           \_ I'm wearing a astigmatism-correcting contacts right now, Accuvue
              toric lenses.  They're only effective up to a certain point
              though.
        \_ i used to wear astigmatism correcting contacts but they fit my
           eyes really poorly. now i have normal contacts (i think .25 stronger)
           and my eyes are much happier
           \_ I'm curious:  RGPs (rigid gas permeable) or soft contacts?
2025/04/04 [General] UID:1000 Activity:popular
4/4     

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