In Pathfinder 1st edition, Sneak Attack has the following condition:
The rogue must be able to see the target well enough to pick out a vital spot and must be able to reach such a spot. A rogue cannot sneak attack while striking a creature with concealment.
... and Dazzled has the following description:
The creature is unable to see well because of over-stimulation of the eyes. A dazzled creature takes a –1 penalty on attack rolls and sight-based Perception checks.
Dazzled implies the creature can't see well, but this is a bit blurry, and the penalty remains -1 (as with a non-dazzled creature with a 1-point-lower Base Attack Bonus), which is barely a malus.
So, can a dazzled rogue sneak attack a target?
Bonus question: Would Shadow Strike help when dazzled?
You accurately strike even those you cannot clearly see.
Prerequisite: Base attack bonus +1.
Benefit: You can deal precision damage, such as sneak attack damage, against targets with concealment (but not total concealment).