Why is your prescription engraved into the lenses of your glasses when it disrupts having a clear view vision? - Quora
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Is the tiny circle which is laser etch in my eyeglass lens (1.67 index) a symbol of the lens maker? - Quora
![Laser etched “T” on transition glasses. Is this new procedure to put an etched letter on the line of sight? There are 2 Ts on each lens. One T on the left Laser etched “T” on transition glasses. Is this new procedure to put an etched letter on the line of sight? There are 2 Ts on each lens. One T on the left](https://i.redd.it/0e3ezohqdo921.jpg)
Laser etched “T” on transition glasses. Is this new procedure to put an etched letter on the line of sight? There are 2 Ts on each lens. One T on the left
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putting outwardly imperceptible, laser etched branding on prescription glasses so the always look like they have a smudge on them to the wearer. : r/assholedesign
![Laser marking machine marks codes on glasses frames - Laser marking, welding and cutting machine | Triumphlaser Laser marking machine marks codes on glasses frames - Laser marking, welding and cutting machine | Triumphlaser](https://www.triumphlaser.com/wp-content/uploads/Laser-marking-machine-marks-codes-on-glasses-frames.jpg)