Overdraft of Eyesight

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Why Save the Usage of Eyes

Summer is the season of the highest temperature in a year, so the metabolism in human body is very active. Generally speaking, many people are so easy to be influenced by the high temperature in summer that their physiological functions and appetite tend to change. So in this hot summer day, how to adjust our body to the best state? Below we prepare for you some knowledge on keeping healthy. Wish you have a good summer day.

Eyesight is a kind of limited resource.

Save water! Save electricity! Save time! From childhood to present, we have listened to countless edification like that. Due to the limit of the resource above, we need to save them. If we devour these limited resources, there must be the day of exhaustion. In fact, eyesight is also a kind of limited resource, so we need to protect it and save the usage of eyes.

Although the cause of myopia is not very clear yet, it is proved by lots of social surveys and experiments on animals that there are obvious causality between the occurrence of myopia and overdraft of eyes in watching near objects during the adolescence when eyes are still growing. Take the adolescent myopia sufferers who have the average extra reading time of less than two hours as reference, the number of adolescents who tend to read three hours after class are 2.1 times of the former ones. As for the adolescents who read for four to five hours after class, the number comes up to 3.2 times.

From the statistics shown in the above example, we could know that the overuse of eyes in watching near objects is the main reason for adolescents to get myopia. Early in 1980, a foreign scholar called Wallman did an experiment with chicklings. Through the experiment, he found that the chicklings which spent long time in watching near objects would get myopia of strong strength, while the chicklings which not only observed near objects but also watched objects beyond or spent long time in watching objects beyond didn’t have any problem in their eyes. Since, there are some other experiments also proving that overuse of eyes in watching near objects is the main cause of getting myopia.

All of these facts tell us that, during the adolescence, the time of watching near objects is a limited resource. If we consumer it excessively, some diseases would come into our eyes. Therefore, it is necessary for us to save the usage of eyes.

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How to Prevent Your Children from Becoming Near-sighted

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Have you ever felt astonished about the rising occurrence rate of myopia in small children? Have you ever thought about why does our children’s vision so rapidly deteriorate at such an early age? If you are a concerned parent, you may want to know the causes of myopia and the proper methods to prevent your children from becoming near-sighted.

The causes of myopia can be divided into two categories: one is due to the hereditary factors and the other is formed because of the unhealthy habits.  The latter, of course, is the result of the excessive amount of reading and other close work such as playing computer games and watching TV for too long.

So what can we parents do to help protect our children’s delicate eyes? Firstly, pay attention to your children’s behavior especially when they are young. You should set rules for them to follow in order to help form a good habit. For example, always remember to wash the hands when coming home from outside, and never scratching the eyes. All these can prevent the eyes from getting the contagious eye diseases. What’s more, as a responsible parent, you should be tireless in adjusting children’s sitting position when they are reading and writing. And proper light is needed in the room in order to get rid of the shadows on the desk. Always remember to ask them to take a rest after doing close work for over 40 minutes. In addition, enough nutrition can never be neglected. Scientific researches have already proved that absorbing plenty of antioxidants and minerals can help reducing the risk of developing eye problems. We all know that fresh vegetables and fruits which contain plenty of vitamins and other minerals are indispensible for adults, let alone growing children. However, sweet food like candies, cookies which can raise the cause of myopia, should not be allowed to eat too much.

As concerned parents, we all want to do our best to save our children’s eyes, though they may still be too young to notice the importance of healthy eyes. Take steps from now on, and we can one day receive the gratitude from our children.

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Fish and Eyes

I have not had the habit of eating fish ever since I was a little child; in a word, I am not interested in that kind of flavor. My mother used various kinds of methods to persuade me to eat it, but I just have a deep sense of contradicting fish. Whenever I went out with my friends, they also tried to make me eat some fish, by keeping on saying the importance of the nutrition that is contained in fish. I have been considered a strange person by almost all the people surrounding me.

But during these days, I began trying to take in some fish. This is really a surprise even to me. My mother calls this as a breakthrough. But there is also a reason for this breakthrough.

When I went to the hospital to have my eyes examined last week, the doctor said that I must put aside my personal habit of avoiding fish. She said that the nutrition in fish cannot be found in other food, and that is very essential for the health of the eyes.

She added that to eat fish does not mean that it will do a certain good effect for my eyes’ health, but to keep on avoiding eating it will certainly do some bad effect to the eyes, especially for me, whose body is not very strong and illness-battled.

So after a long night of thinking about this problem, I began to break my former habit. The different types of my eyes’ problems have maintained over the last ten years, at least I thought so. Then I will change my stubborn idea to check out if fish is really essential for me.

In former times, I don’t believe in the theory of balance among different nutrition. I thought that to eat enough for my daily activities is just where the significance of taking meals lies in. But now, although this kind of false idea is put out of my brain, many of the bad habits remain till now.

Maybe all I need is just a change.

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Glasses Esthetics

Nowadays, more and more people wear glasses because of busy work or being addicted in computers. At the same time, more and more people usually change their glasses with the development of economy and science. As for glasses, there is a set of glasses esthetics, i.e. how to choose and wear suitable glasses.

Here are some dos and don’ts when you are buying glasses. First, you should choose a regular and sound glasses shop so that the quality and service can be guaranteed. Before you buy glasses, you should be in optometry first. Do not buy them blindly. After the glasses are done or selected, optometrists will give you some advice of glasses according to your face shape. Generally, if the parameter is right, you will see very clearly when wearing new glasses. In addition, if you find some problems about the quality of glasses, you should contact the shop in time.

How should we choose lenses of glasses? The lenses can be divided into two types: glass lenses and optical resin lenses. Glass lenses contain glass optical lenses and ultra-thin lenses. They have a high hardness and a good wearing resistance. Generally speaking, their quality and parameter will not change over time. But in the aspects of impact resistance and weigh, they are inferior to optical resin lenses. As for optical resin lenses, they are lighter than glass lenses and have a better impact resistance. But their surfaces are less hard so they are easily grazed. Just for the sake of their softness, they should not be come up against hard things. When you wash and clean them, you had better use clean water first and then blot the water with special cloth or paper.

As for choosing eyeglasses frames, apart from price and beauty, you should pay more attention that the size of the frames matches the interpupillary distance. When considering the quality of glasses, you should notice the following points. First, glasses frames with a good elasticity are usually in good quality. Second, if there is a smooth and shining glasses frame, the glasses have a fairly good quality. Third, the wielding spots of good glasses should be smooth, small and steady. Fourth, the parts should be assembled closely. Fifth, the lenses at both sides should be in the same size and shape. And the glasses should be bilateral symmetry with nose as an axis.

With all the things above, I think you can choose and buy a pair of suitable glasses for you yourself.

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How To Maintain Eyeglasses

There is a saying that eyes are the window of our soul. We observe the outside world through eyes, and our expressions or feelings are displayed on the eyes. Hence, it is obvious that how important our eyes are. Eyeglasses, which are extremely close to our eyes and are considered as the second eyes, should need a correct and careful maintenance. To some extent, take good care of your eyeglasses is just like protect your eyes.

The main problem of our eyeglasses often occurred on the lens. Lens is very fragile, which is very easy to be damaged with smears, smudges, fingerprints, fogging, spots, dusts, scratches and so on. Thus, the life of a pair of eyeglasses is not as long as it is really. Moreover, since the price of eyeglasses is not very cheap and the process of buying a pair of new eyeglasses is troublesome, most of people do not replace it and continue to use it until it is completely bad. So you can image that how blurred to use a scratched eyeglasses to see objects. As we know, the function of eyeglasses is to correct our bad vision and help us have a clear vision to see the outside world. If it has the smears, smudges, fingerprints, fogging, spots or other defects, it can not offer our good vision even worse our visual acuity and cause eye problem such as double vision, astigmatism. Therefore, it is quite important and essential to take good care for our eyeglasses.

Now, there are several major tips for maintaining lens that enabling its clear and new.

The important step to maintain lens is to correctly clean the lens.

Commonly, wearers are used to cleaning it with paper, a piece of worn cloth or other rough towel. This is harmful to lens and easily smear the lenses. The correct steps to clean lens are as follows:

1.   Rinse your glasses with water before cleaning them — this can flush away any dust or tiny particle that prevent these from scratching the lenses.

2.   Clean the lenses with an eyeglasses lotion or liquid cleaner. Gently rub both sides of the lenses with your thumb and forefinger.

3.   Rinse with warm water and dry the lens with a clean and soft cloth. The cotton cloth is the best. Or always, the opticians will freely give their customers a specialized lens cloth along with the plastic eyewear when they buying eyeglasses, so that we can use it to help us clean lens.

In addition, never lay the eyeglasses face down. Keep the lens surface face up in order to prevent lens from coming in contact with things that can scratch the lenses. And it is best to put them on the case when we do not wear them.

In short, take good care for your plastic glasses is to look after your eyes!

Thank  for your attention to Prescription Glasses 4 You

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Great Vision for the Next Generation

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Whether it is a week-long vacation along the beach or a five-minute trip to the grocery store, you wear sunglasses in summer. What about your 7-year-old son? He builds sand castles for hours during which you finished several issues of People through your dark lenses; he circles your house for a thousand times on a blazing afternoon when you are hiding under the shade of that giant oak tree in your yard and complaining with your neighbor about how unbearable the heat is; he splashes water to anyone who gets near enough in a public pool without feeling tired or bored; he constantly exposes himself to bright, strong and harmful sunlight without noticing it. Children’s eyes are also vulnerable to the sun’s ultraviolet radiation. Sunglasses are on longer a privilege of adults. Here are some great tips to help you ensure a great vision for the next generation.

Go for the polycarbonate.

Children seem to have endless energy to run after each other, climb trees, hide themselves in you wardrobe, doing dangerous things behind your back. You don’t want lenses made of glass or plastics shatter if you kids trip. Polycarbonate is a kind of virtually indestructible material. Pay close attention to the tag to make sure the lenses reach the industrial standards for impact resistance.

Do not trust the tint.

The darker, the better? The answer is no. You are trying to protect the vision of your kids instead of casting for the next James Bond movie. Sometimes dark tint is even worse than no sunglasses since pupils constrict in bright lights but dark lens fools the pupils into expanding, permitting more radiation.

Price does not equal protection.

Do not take it for granted that price is an indicator for protection. You may be paying for the frames and I don’t think it is important care whether his sunglasses are in or not. Good lenses are not necessarily expensive ones.

Be cautious in front of advisement.

Do not let ads take the advantages of you. Some of them simply want to scare you into purchasing their products. Keep in mind there is no conclusive research in this area. Consult your ophthalmologist before reaching for your checkbook.
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