Common vision problems and eye diseases

Currently, there are a large number of both adults and children suffering from various vision problems. Statistics show that there are worldwide more than 7 million people over 6 years old who can not see words and letters clearly even with the help of prescription lenses.

Causes of vision loss

Human beings suffer many kinds of vision problems, and vision loss is the most serious one with the absence of vision which is existed before. This kind of vision problems can happen either acutely or chronically. So vision loss can be divided into two parts: one is acute vision loss, which means the pitient can’t see anything suddenly, it maybe tempoarly or devastating; and the other is chronic vision loss, in which patient’s visual acuity is becoming lower and lower.

Common eye problems among older people

Some people in their 80s still have good vision. In other words, there are no vision problems in these people. However, there are actually some changes in the vision and eyes. Some individuals are forced to use their eyes less efficiently.

Vision problems of school-aged children

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.

Vision problems of children

Parents are strongly encouraged to arrange an eye examination for newborn infants. Today, vertical stripes in different sizes can be used to measure an infant’s vision capability and some other instruments can be used to evaluate the approximate prescription in infants.

Discomfort caused by computer use

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.