hello
soometimes i have to check the progressive lens power.
at that time, the lens that has many prism diopters.
i'm using NIDEK LM-990 model, this lensmeter can check 12 prism diopter below.
but, some progressive lenses has more prism diopter in near view circle.
at this time, i can't check the lens power. lens meter just show me "data error". :hammer:
how could i decision this lens has correct addition power or not?
waiting your opinion.
thanks for reading
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