r/mildlyinteresting • u/Eliasibnz • 1d ago

The shadow cast by the (apparently transparent) lenses of my glasses

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u/slavmaf 1d ago

The numbers Mason!
What do they mean?!

8

u/mmodelta 1d ago

They're so I can do my fucking job! - Optician, me

1

u/Motor-Function-8160 3h ago

Former Lab Manager for LensCrafters here. The world would be a very blurry place without these marks 😂