You may suffer from "dry eye syndrome" when you blink less than 7 times per minute
Source: Wenzhou Business Daily reporter Li Yangci Zhejiang Online June 6 hearing in the eyes of many parents, iPad in addition to allowing children to watch animation, play games, but also to learn English, Tang poetry, but in the eyes of ophthalmologists, with iPad and other electronic products is even hurt. Today is “Eye Dayâ€. The reporter learned yesterday from the Eye Hospital of Wenmei University that the dry eyes have become the second largest ophthalmic disease in the daily clinics. The office staff is the main patient group, and there are also five to six year old children in the patients. . Normally, the eyelids of normal people are about 20 times per minute, and if it is less than 7 times in a long period of time, they may suffer from "dry eye syndrome." 6-year-old boy playing iPad to play "dry eye syndrome" The situation can no longer blink The 6-year-old Tong Tong is an active boy. In order to calm the children, parents often use their mobile phones or iPads to send their children, especially when dining outside. A few days ago, when Tong Tong used the iPad to play games, he constantly rubbed his eyes and blinked. Upon inspection, the doctor found that the child had dry eye. "Children's tear secretion is very low, and if they go serious, they won't blink." The doctor told parents. It is reported that patients like Tong Tong are not uncommon in eye clinics in major hospitals. There are dozens of dry eye patients every day in the attached medical eye clinic, including many children. Ophthalmologists said that dry eye patients accounted for one-third of outpatients, patients with eye fatigue, dryness, photophobia and other symptoms. It is reported that the doctors of the Hangzhou Eye Hospital of the Optometry Hospital of Wenzhou Medical University previously took their children to do fun tests. The results showed that: playing 20 minutes tablet, blinking times significantly reduced two or three times, tear film rupture time is equivalent to patients with dry eye; playing 20 minutes mobile phone, the average visual acuity closer to the vacation myopia; playing 10 minutes mobile phone, equivalent to see 30 minutes TV. Obviously, iPads, iPhones and other electronic products have much more destructive power for children than TVs and projections. According to doctors, symptoms of dry eye in children are generally lighter, and most of them are temporary. As long as children's bad eye habits are corrected in time, allowing children to carry out outdoor activities, it may be relieved in a few days. Normally, parents should let their children play less mobile phones and computers and watch less TV. The total time for using such devices should not exceed one hour in a day. IT workers see too many computers suffering from "dry eye syndrome" Doctor's "prescription" is a humidifier and wet room mirror White-collar workers in the office are the main group of dry eyes. Dr. Chen Wei, director of the Center of Keratology at the Eye Hospital of Wenma Daxue, introduced that in the outpatient department, 50% of dry eye patients are due to occupational and environmental causes of dry eye. Chen Wei said that white-collar professionals often stare at the computer to see when the eyes are stimulated by computer light, the ciliary body will produce excessive regulation, gradually appear thickening of the lens, crystal protein degenerative changes such as hardening. A long time will lead to visual fatigue, and then affect the eye focus function, induce myopia. Last week, an IT worker turned to the Optometry Hospital and said that due to the nature of his work, he had to work on computers for more than six or seven hours a day. In the recent period of time, the eyes began to swell and became dry. They felt pain in recent days. They couldn't keep going for five or six minutes at each computer. Otherwise, the eyes were afraid of light and the foreign body was very strong. After the examination, they were diagnosed as " Dry eye syndrome." The doctor advised him to place a humidifier on the table to increase the humidity and give him a wet room mirror. Another group that is prone to dry eye syndrome is the driver. When they drive, they use their eyes to look for the way. In most cases, they are nervous, blink less often, and their eyes feel dry. In addition, they are easily exposed to strong light. Sting. “In recent years, people with dry eye syndrome were mostly present in the age of 50 or 60. In recent years, children and young people are becoming prone to dry eye due to the heavy use of electronic products.†Chen Wei said that in general, normal eye blinking The frequency is about 20 times per minute, but when we look at electronic products, attention is focused on the content of the screen, so that the number of blinks is virtually reduced, only 7-8 times per minute, which reduces the lubricant and The secretion of tears. At the same time, the strong light from the computer is very irritating to the human eye. Because of the short distance, it is easy to make the tear secretion abnormal and cause dry eyes. If the number of eye blinks per minute is less than 7 times, it may mean that you suffer from "dry eye syndrome." The Network Camera/ Network IR Camera/ Network Cameras/ Network Camera HD/ IP Camera Wifi/ IP Cameras/ Mini IP Cam, also called the IPC, WEBCAM, or WEB Camera, is a new-generation camera that combines the traditional camera and the network technology. And the user can monitor the Network Camera images just with a standard web browser (such as the "Microsoft IE or Netscape).
The design of the world's first Network Camera is originated from two scientists who wanted to drink coffee.
In 1991, only the main computer room of the Cambridge University Computer Research Center had a coffee maker. From time to time, scientists from other rooms ran to the main computer room but found that the coffee was drank up. In order to solve the problem of a wasteful trip when pouring coffee, scientists Fraser and Paul thought of assembling a device that can monitor the coffee maker in the main room. They first pointed a camera at the coffee maker, set to take three photos per minute, and then wrote a program to send the camera pictures to the research department`s internal network. Then, the Cambridge University successfully installed the first Network Camera in the world.
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As a new generation product that combines the traditional camera and the network video technology, in addition to the image capturing function of the traditional cameras, the Network Camera also has a built-in digital compression controller and a WEB-based operating system; which makes the video data compressed and encrypted, and then delivered to the end users via the local area network, internet or wireless network. The remote user can use a standard web browser on the PC to access the network camera according to the IP address of the network camera, monitor the on-site situation of the target site, edit and store the image data, and can even control the camera PTZ and lens to achieve the monitor in all directions.
Nowadays, the Network Camera are being used more and more widely. So do you know how the Network Camera was invented? Well, here is a story.
On November 22nd, 1993, the real "Internet camera" was born and it was still in the computer research department of the Cambridge University. The laboratory which another scientist named Johnson was at could not be connected to the internal network. Johnson could not use the previous monitoring software to check the coffee, so he wrote a program to make his own computer can receive photos from the camera; which makes the breakthrough of the camera from the internal network to the World Wide Web, realized.
Since then, millions of people from all over the world have joined the "coffee pot watching activity" through the Internet. In 2011, due to the obsolete equipment and the inability to maintain it, Cambridge computer scientists finally shut down the Network Camera.
