Shooting, archery player exception good eyesight? Answers to accident-vision-IT information
The Olympics these days is world of shooting, archery, I believe many people have doubts, Bull's Sharpshooters on the field, all Visual alarming, must have very good eyesight! But the fact is--"Sharpshooter" no direct link between the vision of reconciliation, on the contrary, due to overuse, weary from many people is very serious, but shortsighted.
In General, these projects shooting, archery, Bullseye targets are far more than 50 meters away, even if Visual acuity and good projects for more than 50 meters, Bull's eye had become very, very small. Focus on athletes stared at the bull's eye, balance, very high standards for eye, vision loss is big.
Meet our eyes
Eyes are the window to the soul. For humans, it is one of the most important sensory organs. The eye is a very delicate organ, can be in a different environment to their specific shape change, human Gets the right information in a complex environment. Eyes through the light onto light-sensitive retinal imaging, where light is received and converted signals through the optic nerve to the brain.
Shooters ' eyes demanding
Biggest features is the ability to identify detail eye people, often expressed as angle resolution, known as vision. Shooting sports are generally turn a blind eye, two-eyes is different for a long time, man-made shaft elongated eyes, resulting in myopia or astigmatism; another possibility is have a double vision.
Shooting Champion myopia is the prevailing international norm. Thus, many shooters are generally chose to wear glasses for vision correction, reflective, and astigmatism, a professional adjustment.
Ordinary people how to protect eyes
1, many outdoor sports
Outdoor sports, plenty of outdoor activities and natural light is important to prevent myopia, can promote supply and absorption of nutrients. Outdoor sports, especially hiking, biking, walking and other sports in the mountains, a large area of green environment, relieving the Visual fatigue effect is very good. In addition, the climb is the best way to adjust for your eyesight. Because only the interaction distance vision and constantly Exchange to keep regulating the contraction and relaxation of muscles inside the eye is flexible and not rigid.
2, good food
Eat more pulp is good for eyesight, yams, carrots, spinach, sweet potatoes, taro, maize, animal liver, beef, food such as mulberry, jujube, or red dates and ginseng, medlar and chrysanthemum, Luo Han Guo tea drinking, or eye.
3, eye exercises
The eye muscles move! Formation of myopia is due to eye ciliary muscles and extraocular muscles in a State of high tension for a long time, which the ciliary muscle spasm, forming vision loss. Work, often our eyeballs, can ease the process. Approach: wide-eyed, try to keep running the eyes, first from right to left 10 times 10 times from left to right. Rest for 10 minutes then repeat the exercise, so 3 times. This method can effect of xingnao eyesight.
射击、射箭运动员的视力异常好？答案意外 - 视力 - IT资讯
这几天的奥运赛场是射击、射箭比赛的天地，相信不少人都有疑问，赛场上百步穿杨的神枪手，个个目力惊人，一定视力非常好！但实际情况却是——“神枪手”和好视力之间没有直接联系，恰恰相反，由于用眼过度，不少人都视疲劳很严重，反而是近视眼。
一般来说，射击、射箭这些项目，靶心目标都远远超过了50米外，即使视力再好，对于超过50米项目，靶心已经变得非常非常渺小了。运动员必须全神贯注盯着靶心，保持身体平衡，这对用眼要求非常高，视力损耗较大。
认识我们的眼睛
眼睛是心灵的窗口。对于人类来说，它是最重要的感觉器官之一。眼睛是一个非常精细的器官，可以在不同的环境下对自己的具体形态进行改变，使得人类在复杂的环境中获取正确的信息。眼睛通过把光投射到对光敏感的视网膜成像，在那里，光线被接收并转化成信号并通过视神经传递到脑部。
射击运动员对眼睛要求极高
人眼睛的最大特征是辨认细节的能力，常以视角分辨率来表示，并称为视力。射击运动一般是睁一只眼闭一只眼，使两只眼长期用力不一样，人为把眼轴拉长，造成近视眼或者散光眼；还有一种可能是视力产生重影。
射击冠军近视是国际普遍正常现象。因此，不少射击运动员们，都普遍选择了戴眼镜来矫正视力，在反光和散光方面，做出很专业的调整。
普通人如何保护眼睛
1、多进行户外运动
户外运动中，充足的户外运动和自然光对预防近视很重要，可以促进眼部营养的供应和吸收。在户外运动中，特别是爬山、骑行、健走等在山林中的运动，大面积的绿色环境，对舒缓视觉疲劳效果很好。此外，登高远望是对视力调节的最好方式。因为只有远近视野不断的交互交换，才能保持眼内调节肌肉的舒缩灵活而不僵化。
2、饮食合理
多吃对视力有益的桂圆肉、山药、胡萝卜、菠菜、番薯、芋头、玉米、动物肝脏、牛肉、桑椹、红枣等食物，或者以红枣、人参、枸杞、菊花、罗汉果泡茶饮用，也可护眼。
3、护眼操
让眼部肌肉动起来！近视眼的形成是由于眼部睫状肌和眼外肌长期处于高度紧张状态，以造成睫状肌痉挛，形成视力减退现象。平时工作中，经常转动眼球，可以起到缓解作用。具体做法是：瞪大双眼，尽量使眼球不停转动，先从右向左转10次，再从左向右转10次。休息10分钟之后再重复上述运动，如此3遍。此法能起到醒脑明目之功效。