Correction lens?

[Biber]

Hey,
I'm finally going to order a correction lens for my Ms and I wonder if I should think of anything else beside the strength on my glasses. Should I just order a -3 lens if I have -2.75?

 

[waileong]

Myopia + Astigmatism

Myopia + Astigmatism

You need to include both the myopia and the astigmatism, if any.

When it's in between diopters, I guess you should buy based on where your myopia seems to be heading, ie is it increasing or decreasing?

Remember that with presbyopia as you reach middle age, your correction may come down.

Wai Leong
===

Hey,
I'm finally going to order a correction lens for my Ms and I wonder if I should think of anything else beside the strength on my glasses. Should I just order a -3 lens if I have -2.75?

 

[ChrisN]

Useful article:

M eyepeice correction lenses - how to estimate?

 

[Biber]

I don't have any astigmatism so I guess it's just the myopia then.

Thanks for your answers.

 

[payasam]

I struggled for a long while with attachable correction lenses before an optician on another forum told me what's what: you should be able to see, through the finder, an object around a yard and a half away. My answer is not a correction lens but a pair of cock-eyed spectacles: right eye for finder, left eye near vision prescription so I can read the lettering on lenses and dials. Can anyone tell me, please, if this lettering shrinks as equipment grows older?