A patient is considering freeform for SV (high minus, probably 1.74) and asked a great question: how much improvement can I expect? Obviously for progressives the improvement is dramatic, but has anyone seen a page or video that shows or quantifies the improvement over stock lenses in different SV situations?
The manufacturers' freeform SV marketing pages do the opposite - few details and no example images or side-by-side comparisons against the best stock lenses. https://www.optiboard.com/forums/sho...-vision-lenses is the closest thread I found, and it doesn't have anything objective or even a subjective consensus, and it's 8 years old.
I'd be a bit more inclined to consider freeform SV for a high plus prescription. Cost isn't a concern here, though - the patient is willing to pay for the best. They asked the right question: what improvement, if any, can I expect? I'd like to be able to get more specific than "Not a ton, but probably some."
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