If you have a small amount of astigmatism, it will be left off your contact lens prescription. If you have a larger amount of astigmatism, the axis may be modified to account for the rotation of the lens. If you are very near or far sighted, the power will be modified since the effect of the power changes depending on how far from your eye it is. Often powers have to be rounded off because a contact is not made as custom as glasses are.
Possibly yes, when I got my first contact lens prescription I didn’t get a spectacle prescription, so I took the contact prescription to another optician who measured the spectacle lenses, she knew straight away that the contact prescription was wrong based on the astigmatism correction.
If you have a small amount of astigmatism, it will be left off your contact lens prescription. If you have a larger amount of astigmatism, the axis may be modified to account for the rotation of the lens. If you are very near or far sighted, the power will be modified since the effect of the power changes depending on how far from your eye it is. Often powers have to be rounded off because a contact is not made as custom as glasses are.
No, it probably isn’t going to be the same thing.
Just like you can’t get contacts with a glasses prescription.
Probably over 85% of the time, there are differences between the two.
Possibly yes, when I got my first contact lens prescription I didn’t get a spectacle prescription, so I took the contact prescription to another optician who measured the spectacle lenses, she knew straight away that the contact prescription was wrong based on the astigmatism correction.