From the founder.
Citation-grade notes on eye health, blink rate, the 20-20-20 rule, and how we build private, on-device tools. Written for people who stare at screens for a living, because that is who I am too.
- product
How Blinkwell measures blink rate on a Mac, privately
Blinkwell watches your eyes from the menu bar, entirely on your Mac, no upload, no account. Here's exactly how the on-device pipeline works.
May 1, 20265 min read - eye-health
What changes about your eyes after 40 (and how it stacks with screen time)
Two things change about your eyes around 40 that nobody warns you about, and screen time amplifies both. Here's what's happening and what actually helps.
Apr 29, 20268 min read - eye-health
The 20-20-20 rule, what the science actually says (and why a timer isn't enough)
The most-recommended advice for digital eye strain went almost twenty years without a controlled study. The 2022 Aston University trial finally tested it. Here are the results.
Apr 22, 20266 min read - eye-health
Why your eyes feel dry after a day at the screen: the blink rate problem nobody talks about
Healthy adults blink about 15 to 20 times a minute. Stare at a screen and that drops to half, sometimes to 6 or 7 per minute. Here is what the research says, and why it is the real cause of your 4 p.m. dry eye.
Apr 15, 20267 min read