Aniso match base and center

[mikey]

My daughter had her eyes examined and came back with the typical
prescription and some extra info.
At the bottom it said:
Recommendations:
Aniso match base and center
AR coat

I can figure the AR coat means anti-reflective.

What does Aniso match base and center mean? Aniso might be short for
anisotropic. I read the definition of Anisotropic but that didn't
help.

[Marc]

This is referring to the fact that your daughter's prescription is
different for each eye. I'm curious as to what her prescription is?
Depending on the difference, you might be better off going to an
optician for the lenses and maybe ordering just the frame online. If
it's over 4.00 diopters difference, you definitely want to go to an
optician. And generally people with a significant amount of
anisometropia tend to do better with contact lenses, so you might want
to look into those for your daughter.

"Match base and center" is the optometrist's recommendation that the
base curve of each lens and the optical center be the same - sometimes
these are set differently for each lens by the optician based on the
level of anisometropia.

Marc
JustEyewear.com

[mikey]

One eye is +1.5 and the other -1.5 so the correction is not large.
The difference (+1.5 - (-1.5)) of 3 does fall below your
recommendation of 4.00.
Everyone agrees, even her, it is weird!

Thanks for clearing up what was meant by "Aniso".
My daughter is old enough to go by herself but not assertive enough to
question a doctor.

[Marc]

Ah, that makes sense. One eye is plus corrected (that eye is far
sighted) and the other eye is minus corrected (that eye is near
sighted). You probably want to go to an optometrist / optician for the
lenses, because when eyes are aniso like that (one plus, one minus)
and the glasses aren't done the proper way for correction it can
result in worse vision in one eye or amblyopia. This is a particular
danger for children.

If you're still set on ordering online, make sure to pass on the
instructions from the optometrist to match the base curves and OC.
Also, I'd highly recommend considering contacts if she doesn't wear
them already.

Hope that helps!

Marc
JustEyewear.com