[towaway]

Really interesting to see this on HN!

I got HPD from a fairly large dose of 4FA once. I had persisting light sparkles pretty much exactly like the first image in the article.

I researched online and discovered the term HPPD but information was extremely sparse then. I see there's a fair amount more now which is encouraging.

From the advice I found I got myself some Lion's Mane supplement, meditated and exercised a few times a week. A few weeks later I just kind of forgot about it and noticed one day that the HPPD had disappeared.

The effect wasn't hugely detrimental on a practical level, but it was very strange coming to terms with the fact that this may well be a permanent change.