Eye test results differ - is it important?

Brinbrin

Hi all. In short, I had an eye test in October 2018. I was told to return within a few months to double check the prescription. I returned this weekend (different optician but the same company) and my prescription has changed significantly in terms of the astigmatism axes. I was under the impression that a few degrees of variation was normal. But this is a change of 80 degrees and 105 degrees.

As I have to pay for each eye test, I really would like to avoid going back again so soon to check if the new values are correct. I did go back to the shop and the lady behind the counter told me “the values have hardly changed”, so not to worry. She would not double check my prescription.

Can anyone shed any light on whether the axes changes are realistic?

2018:
Right: +1 sph, -0.25 cyl, 85 axis
Left: +1 sph, -0.5 cyl, 110 axis
Add 0.5.

2019:
Right: +0.75 sph, -0.25 cyl, 5 axis
Left: +0.75 sph, -0.25 cyl, 5 axis
Add 0

Thanks!!

GlasweJen

Are you sure the cyls aren't positive in the newer prescription?

Brinbrin

They’re written with the negative sign. I had wondered if that was the problem too, but according to the written prescriptions they are both in the same format.

getmore4less

Go back with both prescriptions for clarification.

If they are not sure they should do a 3rd check for free if you paid for 2 already.

Plenty of vouchers for free tests elsewhere.