However, even the most advanced type of progressive lenses have limitations when user's presbyopia/"??" crosses the +1.75/+2.00Ds mark. zone.
Should it be "has" or "have"?
Thanks!
tamguatlay Should it be "has" or "have"? The whole sentence is askew. 00Ds mark.
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tamguatlayShould it be "has" or "have"?
The whole sentence is askew. Try "However, even the most advanced type of progressive lens has limitations when the user's presbyopia/"??" crosses the +1.75/+2.00Ds