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 excess is when the eyes have a strong tendency to turn in during reading and close work. It causes the same symptoms as convergence insufficiency. Eye teaming problems occur in 5-10% of children and adults. Neither of these problems are detectable when just looking at a child. More dramatic forms of eye teaming problems are called strabismus, when an eye can actually be seen drifting or wandering at times. Click here for more on strabismus. This is what reading looks like with an eye teaming problem: Click here for the signs and symptoms of eye teaming and visual efficiency problems.