Quick Blink is a gear perk that shortens how long you stay blinded. Flashes, poison and similar effects take your sight for less time, which matters most in close fights with FND squads.
When an effect blurs or whites out your screen, it clears faster. You get your aim back sooner instead of firing blind.
Equip the Electrician's Helmet, Miami Strip Shades or Synthpop Helmet. Gear perks are fixed to the piece of clothing that carries them, so you get this one by wearing that piece, not by unlocking it in a menu.
Niche. It helps if you keep getting caught by poison and blinding gadgets, but a head slot that tags enemies tends to prevent those fights in the first place.