Hello,

I had doubts about the reliability of an eye exam and went to get a
second opinion on the refraction since that is the one part of the exam
with a measurable result the patient can see.

Please tell me if there is a significant difference between any two of
these prescriptions below. ("Significant" meaning it's worth getting
new glasses for -- about $300 -- or that it would stress your eyes to
use one prescription when your real prescription is the other).
Differences between A and B, A and C, and B and C?

prescription a:

          sphere   cylinder  axis  add
right eye: -2.75    -1.75     128   +1.25
left  eye: -2.75    -1.50      55   +1.25

prescription b:

          sphere   cylinder  axis  add
right eye: -2.50    -1.50     125   +1.50
left  eye: -2.75    -1.50      55   +1.50

prescription c:

          sphere   cylinder  axis  segment power
right eye: -2.75    -1.25     128    1.50
left  eye: -3.00    -1.25      56    1.50

And if there is a significant difference in one of these comparisons,
is it only in the near sight part?

And is it possible to order only one new lens if only one eye has
really changed much? These are progressive lenses.

Specifically, prescription A is what I currently use, prescription B
looked blurry in the office of the first doctor, while prescription C
looked crisp in the office of the second doctor. The first doctor put
drops in my eyes, which I think no one has ever done before the
refraction in previous exams I've had.

Thanks in advance for any help and insight,

Suzanne