Report Abuse. Yes, I'm sorry but they eat blood. That's why they are usually found on the scalp and not in the lengths of the hair. Yes it's very common for kids of all ages to get them I suggest you keep your hair bunched when with your nieces.
Convergence insufficiency is a difficulty or inability of the eyes to converge and work together at a near distance for extended periods of time, such as when reading, writing, drawing, or viewing a computer screen.
Convergence Insufficiency or Excess. When an object is getting closer to you, your eyes have to converge to see it. Converge means to move the eyes in towards each other. Double vision is a common side effect of poor convergence ability. Convergence is the ability for the eyes to turn inward towards each other.