Toric lenses align themselves, the mark is for visual inspection by the doc whil... | Hacker News

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BlueGh0st 7 months ago | parent | context | favorite | on: You've got to hide your myopia away: John Lennon's...

Toric lenses align themselves, the mark is for visual inspection by the doc while in the eye.

mb5 7 months ago [–]

They do align themselves but, for me at least, it can take a little while. Aiming the mark downwards really speeds things up.

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