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A comment on Why are glasses so expensive? The eyewear industry prefers to keep that blurry. Parent comment

Re:Why are glasses so expensive? The eyewear industry prefer... by rhinoceraptor on Wednesday January 23, 2019 @02:05PM (#18981482)
A tip for anyone measuring their own PD, shine a bright light in your eyes so your pupils constrict. That will make finding the center a bit easier.
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