The LifeStyle and MyStyle are basically the same design, except that the LifeStyle comes in two
fixed models:
- Harmony - A balanced, relatively soft design with long corridor (depending on B height) that has good intermediate.
- Clarity - A hard design with short corridor, emphasizing distance and reading at expensive of intermediate.
The MyStyle in theory has many possible variations and not just limited to the two above. The exact variation you end up with is based on the patient answering questions as indicated by a post above about what activities they typical do, and to prioritize each. Exactly how many different possible variations there are with MyStyle is unknown to me.
As mentioned by ThatOneGuy, the questions for the MyStyle are extremely problematic in that when I answered them for my own MyStyle lens order, the order summary indicated I had chosen an hard design with short intermediate corridor, when that is exactly what I did not want. So the interpretation of the questions and answers by the software is seriously suspect. I decided to order the LifeStyle 2 Harmony instead of MyStyle, and am very satisfied with them (as in WOW).
The MyStyle also accepts some other measurements and input from customer as described by Golfnorth above. But I have no idea how it interprets (for example) what current brand of progressive lens the patient is wearing, and how satisfied they are with them. This seems like a stupid question, open to misinterpretation by the software, unless you know why the patient was or was not satisfied. Also, some people are satisfied with a crappy Essilor lens, simply because they have never experienced anything better. For all these custom measurements/questions asked for a MyStyle, the LifeStyle instead just uses customer averages for previous orders of MyStyle lenses (according to the Hoya education online class I took).
So my understanding is that if the patient answered the MyStyle questions a certain way, and the other measurements were defaulted (or measured to be the same as defaults), they could (in theory) end up with the identical lens as one of the two LifeStyle models, since LifeStyle and MyStyle are basically the same design.
I think Hoya would be better off expanding the LifeStyle designs to have one or two more options besides Harmony and Clarity (Zeiss has three for their ID 2), and let the optician work with the patient to decide which one is best. The other customization options (panto, near PD, etc) could be optional inputs, just like Zeiss ID 2.
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