Just to add my experience -
I tried Neurolens for about 3 months. The first 2 weeks were rough, they were uncomfortable to wear and made my eyes feel slightly water-y. I did get used to them, and they were totally comfortable to wear about 3 weeks in. They helped with my general eye strain, but I didn't notice any improvement with flicker. I noticed that my eyes were less tired at the end of the day, but nothing super dramatic. I'd definitely recommend trying them if your doctor says you're a candidate though.