[Misc] A PSA (possibly) but could the nuface be more dangerous than it seems??

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I've had some bad visual side effects with the nuface, particularly flickering lights when using it. In my worry I decided to do some digging after another redditor suggested it may be optical nerve stimulation and everything I've read suggests that it shouldn't penetrate deep enough to do that. I then went and searched up the fda clearance for the mini and found it but it said the mini wasn't specifically approved, rather that since it was simar to the trinity which is approved, it gets FDA clearance. So then I looked at the Trinitys FDA clearance and that says the same thing, that since it's similar enough to the FaceMaster microcurrent training decide which is FDA approved, it gets clearance. The FDA approval for the FaceMaster also says that it's not specifically approved in itself, but that since it's identical to the Rejuvenique, it gets clearance. So...technically the Nuface itself was never FDA approved itself? Is this normal practice? Am I just being silly? I'm really worried about my vision, and I've asked 4 other people I know who use the nuface and also in a skincare group on Facebook. Several people say they too see flickering vision and scalp burning/twitching. I'm positive my device is authentic. I'm seeing my eye doctor again soon to request testing but eep. My eyes are precious to me and I'm scared. Has anyone else had bad effects with this machine?
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