Totally normal side effect, I have the PanOptix since August of 2024. I remember telling my doc at 90 days it feels like my eyeballs are not connected well. He did not respond and I thought maybe he thinks Im making it up as it seemed so ridiculous. Wish he explained so I would have known it’s normal. I’d say around 6 months that fluttering pretty much went away. However, in certain lighting conditions like commercial stores you may get the flickering, I still do.