Laser eye surgery query.?

well i have a pretty rare eye disease call coat's disease. and i've had laser eye surgery a few times for it, and ive seen on like tv and advert and stuff the laser vision correction machines on tv (i.e adverts, use on som shows etc.) and the machines on tv looked very different. i be just wondering are these entirely different machines or just different types of the same mechanism?
Answers:
It all does the same thing. I work for optometrist and they get machines that look different from the ones that previous employers (ophthalmologists).

A LASIK machines are LASIK machines just like a vehicle is a car or a tv is a tv.
I would think that they probably all do indistinguishable thing even though they look different.

ie cutting a flap in your cornia beaming a laser through later sealing it back up again.


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