Children are susceptible to vision problems that will affect their ability to learn. A study took by the College of Optometrists shows that over 25 percent of schoolchildren may have vision problems. Schoolchildren spend much time reading and playing, so that eye care for them is more urgent.

Vertical stripes in different sizes are sometimes used to measure an infant’s vision capability and some other instruments can be used to evaluate the approximate prescription in infants. Only certain pediatric specialists work with the vision problems of infants who are several months old.

Some people complain that they have sore neck, shoulders or back, and even headaches. But they may do not know that these discomfort can caused by vision problems.

People with presbyopia may suffer from headache if they focus on the blurry computer monitor for quite a moment. Aches and pains can also be aroused by bifocal glasses, which require the user to look upward and downward frequently for vision shift.