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? |