I believe that many parents have learned about visual function tests from optometrists or store clerks before having their children refractory . Many parents also find that their children complain that their eyes are sore in the evening, or that it is difficult to read. In addition to visual fatigue, the most important reason for this problem is abnormal visual function.
So today I will explain to you what visual function is and the meaning of visual function check.
Our eyes are a very complex and sophisticated organ. The visual acuity we check frequently is the parameter by which we can most easily detect whether there is a problem, and determines whether we can see clearly. Visual function represents the ability of the various functions of our eyes to work together. It is not intuitively felt by us like vision. It usually requires the help of some gadgets or inspections.
Vision function mainly includes two functions: adjustment and convergence. One represents the eye's ability to focus far and near, and the other represents the eye's ability to rotate internally and externally. When they function normally, they cooperate with each other so that our eyes can easily see them at any distance.
Once abnormality occurs, problems such as blurring of distance and distance, double vision, , inattention, inability to see things for a long time, or even deepening of vision are prone to occur.
Therefore, the impact of abnormal visual function on our eyes is no less than the impact of vision loss on us.
Once we have abnormal visual function in life, the symptoms are mild at first, and we often regard it as visual fatigue caused by overuse of the eyes. It is only relieved by rest, but does not improve completely. Over time, it is more likely to lead to the previous condition. The problem mentioned;
The most common method to solve visual function abnormalities is visual function training. The effect of visual function training is related to age. Just like our physique, if our body functions well, we are less likely to get sick if we are strong. Some people have poor body functions and need to exercise to strengthen their physique and reduce the risk of illness.
For younger children, their eyes have strong plasticity. If visual function abnormalities occur during development and can be discovered in time, they can be effectively improved through a period of intensive training. The older you get, the plasticity of your eyes decreases, and the longer it takes to train.
In the past, examinations in many places tended to focus on visual acuity and power, which resulted in the visual function problems of some teenagers not being discovered in time until adulthood. After adulthood, training takes longer, and due to work and study reasons, they cannot persist for a long time, resulting in the eyes of these people being in a state of exhaustion when using their eyes.
Therefore, visual function examination is as important as visual acuity examination. It is recommended that it be checked every time you check your eyes. Especially teenagers can detect and deal with it early to minimize the impact on learning.
If you have obvious symptoms of visual fatigue, it is also recommended to check your downward vision function and eye health to find the cause.
Thank you!
