Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.
In a medium bowl, mix together the cream cheese, granulated sugar, and vanilla extract until smooth. Gently fold in the blueberries.
Unroll the crescent roll dough and separate into triangles. Place a spoonful of the cream cheese mixture near the wider end of each triangle.
Roll up the dough starting from the wide end, enclosing the filling and forming the crescent shape. Place on the prepared baking sheet.
Bake for 11-13 minutes, or until the crescents are golden brown.
Let cool for a few minutes before dusting with powdered sugar and garnishing with additional blueberries.