Staring contest: how long can you keep your eyes open for?

[hopeful_hiker]

I start to feel slight discomfort / burning / warmth after not blinking for 3.5 minutes and moisture around the 4 minute mark. I got bored and started blinking after that. I am so confused about it given that my TBUT is 6-7 seconds.

Sometimes my eyes “cramp” earlier and start tearing.

Anyway, what’s your experience?