Will Eyebrows Grow Back After One Laser Session?

I had one laser session done to clean up my eyebrow ,the doctor by mistake removed a big part from the end line of my eyebrow ! They are too short now , I kinda regret it as I dont like the cleaned up eyebrow :( . I don't know the type of laser , it is the one that bleaches the hair and the doctor said that they will fall later . But I noticed that the dark hair are falling out too !! I am so worried . Will they grow back ? Are they going to look the same ? I have fair- white skin and dark hair .