Digital media attacks our life and culture. It is so powerful and incredible that it has already obsessed our life. Our modern lifestyle, we spend more time indoor and online which causes reduction of face-to-face communication, separate ourselves from the nature, and did not get a good night’s sleep. All of these habits can be harmful our health which is including visual syndromes from intemperate use electronic devices. The report illustrates that we spend  approximately  12 hours a day in front of TVs and computers .

Myopia is being a public health issue in the contemporary. Since the launched smartphone in 2007 , people heavily use it and visual problems rapidly increases. The research suggests that in the year 2050, roughly half of the population on the planet will be myopic especially in people under age 40. Here is the figure numbers of cases and prevalence of myopia and high myopia from report of the joint World Health Organization(WHO) and Brien Holden Vision Institute Global Scientific Meeting on Myopia.

The symptoms of myopia.

You can see the object closely to you such as reading a book and computer use but distance object is blurry for example playing sports and driving. High amount of myopia can lead to other visual disorders such as glaucoma, retinal tearing , and cataracts.

What causes myopia?

Normally, the cornea, lens and virtreous body reflect the light from objects to the retina and then  optic nerve sends a message to  brain as a result  you see the image or object around you.

The causes of blurry vision and when it’s necessary to see a doctor.

On the other hand, nearsighted person have a long length of the eyeball which causes, “Refractive errors”, light rays focus at the point in front of  the retina so you see the blurry objects farther away . Cornea and lens being too curved for the length of the eyeball can cause myopia.

Nearsightedness dramatically progress in the childhood and adolescence. The progression will be stable in adulthood but, in some cases, it continuously grows with the age. I strongly agree with this point. I began a short-nearsightedness since I was eleven years old. My myopia rate continuously grow so I have to wear glasses all the time while I am being outside or looking at digital screen.  Therefore, parents should observe your kinds carefully.

Myopia is also caused by genetic. If your parents are nearsighted, you have a higher risk to be myopia. Malignant myopia is inhered from your parents’ gene. Your eyeballs get longer dramatically rapid and causes severe myopia. Having a higher risk of having a detached retina, abnormal blood vessel growth in the eyes (choroid neovascularization), and glaucoma.

       In addition , your behavior is the major cause of  nearsightedness. If you stare at something for a long time :such as reading a book and digital devices usage ,your eyes are tried and dry – digital eye fatigue , digital eye strain or computer vision syndrome for viewing too much screen time.  Spending  less time outside can also lead to myopia because in a house has a dim light or not enough for your eyes. The natural light is good and proper for your vision.

How does digital device be able to affect in your insight?

  People usually look at a screen in the distance of 20 cm less than the normal distance of 45 to 50 cm. This habit stimulates the risk of progression of myopia by eight times ; particularly , both parents are short-sightedness.  

Digital screen offers the highest energy and shortest wavelengths (blue light) which is harmful for your eyes and arouses a myopia for people who use it  for long periods. In a short term, digital screen can cause “computer vision syndrome (CVS)” or “ Digital Eye Strain”  which occurs widely among officers or people constantly use electronic devices more than 6 hours. In some cases, it may be less than 6 hours depending on your visual abilities.

        The report shows that approximately 70% of adults in the United States experiencing symptoms of digital eye strain . Adults in 20th century are the greatest proportion of reporting symptoms (73%) .

Staring at a digital screen makes your eyes work harder so your eyes feel uncomfortable.

The common symptoms of  computer vision syndrome.

  • eyestrain
  • headaches
  • blurred vision
  • dry eyes
  • neck and shoulder pain

How can we protect our eyes from the damage of digital screen?

Absolutely , we cannot edit our genetic after we were born so our environment and behavior are essential. Due to rapid increase in childhood and adolescence, parents should limit hours per day for them.  It is difficult to avoid use technology devices in adults. They have to use it for work so they need to exercise eyes and avoid use them for a long time .

These is the way to protect your form the screen.

1. Exercise your eyes

You should blink or move your eyes around in every 20 minutes or less.

2. Keep the distance between you and your devices

Optometrists supposed that you should sit at least an arm’s length away from your screen.

3.  20-20-20 rule

If you stare at a screen for a long time, your eyes feel uncomfortable and tired. Please take your eyes off the screen and see the nature. Daylight can relieve eye strain . It is a great way to relax your eyes and refocus your eye muscles.  “20-20-20 rule “  : every 20 minutes, take a 20-second break to look at something 20 feet away.

4. Adjust your screen lighting.

You should adjust the proper screen lighting corresponding with your environment. Your eyes feel comfortable while you are staring.

5.Increasing the size of digital text is suitable for your sight.

6. wearing computer glasses

It is different from regular glasses  because there is  a function which can reduce the eyestrain from your screen.

  If you are having the trouble seeing the both severe computer vision syndrome and myopia, you should see  an eye doctor before it is too late. Nearsightedness can be treated and in some children’ cases can slowed the development of myopia.