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FAQ

1.) Do Sightline multifocal reading glasses have magnification at the top?

Yes- and here is why: 

Sightline multifocal progressive power reading glasses have a lens designed for maximum comfort and easy user adaptation. 

A frequent problem with prescription progressive lenses is people have trouble adapting to progressive lenses.  Sightline lenses are unique - the lens production process is patented, and the design was developed with maximum comfort and ease of adaptation in mind.  In order to do this, we make the lenses with a very "soft" power transition.  We need the full height of the lens (the lens B-dimension) to allow for a smooth and comfortable power magnification transition.  (This is why none of our frame models have a B-dimension of less than 28mm.) 

So why no zero magnification at the top of the lens?  To design a lens with zero magnification at the top, we would need to have a much more abrupt transition to the section of the lens that provides the proper level of magnification for the task at hand.  In effect, you would have a lens that was not very progressive and would be closer to a bi-focal design.  Doable, but not comfortable.  

Sightline multifocal readers maximize comfort for reading, working on a computer and near vision tasks.  We have nailed this tricky balance and have thousands of happy customers who feel the comfort of Sightline progressive power reading glasses.  Satisfaction guaranteed!  

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2.)  Is there a period of time where I need to get used to multifocal reading glasses. 

No. 

The analogy is a pair of shoes:  If the shoes are not not comfortable in the store, they are probably not going to be more comfortable at home.  There is no break-in or adaptation necessary for Sightline. Having said this - there are fitting guidlines, and since we use mostly optical quality frames there are adjustments that can be made to improve performance.  

 

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