Just to get an idea ...

[becc971]

When someone gets a new RX, or has an RX recheck after you've made them glasses, what do you consider to be a lot of change?

My reason for asking being i had a patient come in who couldn't see with his new glasses, doctor rechecked his RX, told him it was only a minor amount of change. After he gave his glasses back to me and left i did a little research, and he had changed the RX .75 diopters in the right eye and .50 diopters in the left, to me thats significantly different than the first round???? but apparently it was treated like it was no big deal?? thoughts?

its incredibly possible that i'm just nuts and overthinking this.

[Robert_S]

It's a significant change if it makes a noticeable difference to visual acuity... For some that's 0.25 and others 1.00.

[fjpod]

sounds significant to me.

[opty4062]

It's a significant change if it makes a noticeable difference to visual acuity... For some that's 0.25 and others 1.00.

+1 depends on the patient

[Barry Santini]

+1 depends on the patient

Also can depend on accomodative balance, as well as lens utility.

Comfort, Acuity, Utility. Those are the benchmarks.

B

[uncut]

It's a significant change if it makes a noticeable difference to visual acuity... For some that's 0.25 and others 1.00.

+1, I agree with this reply, as well.

A statistical, registered recognition by the wearer, is also a requirement.

[shannon]

I've worked with more than one doc that would tell the patient, it's no big deal...hardly any change and there would be a significant amount. That was their way of generally covering for themselves less the patient feel the doc didn't know what he was doing the first time around. Patient's rarely think about a refraction as being somewhat subjective.

[NUECoptical]

We have a patient that can tell if her RX is off +/-.25 diopters or off axis by 2 degrees! Her Rx isn't that strong, but she for sure notices it as soon as she puts them on! So I agree with others on here that have said that for some patients even .25 diopters is a significant change.

[anthonyf1509]

You can recreate "an old" Rx or same as wearing and change the lens and the patient will think it was the Rx if you've told them nothing. Just an example of how it's all relative and it's more than one part(s).
As far as singling out the Rx change, .25 +\- isn't much to my father in his distance. I've made him multiple pairs differently, but .25 in the add is. So it's relative to what's changing a quarter. Some areas are more sensitive than others.
i try not to complicate it with a patient. Change is change. They can decide for themselves if the need it, but I'll definitely make sure they know the differences they'll notice.
On a recheck, I'd say the DV would need be more than .25 but the add can be .25.

[AngeHamm]

If the patient is a -10.00, it's probably not a big deal. If s/he is a -1.00, it probably is.