The 9-year-old Binbin, driven by curiosity, took the laser pointer to his right eye for a few seconds, after which his eyes became blurred and he felt obscured by a big black dot. Recently, the People's Hospital of Jiangsu Province has successively received 6 small patients who suffered permanent vision damage due to playing with a laser pointer. Experts have warned that high-power laser products have potential safety hazards, and parents should not buy laser products for children as toys. However, our reporter found that dangerous laser products are still hot in the market and online.
Direct view laser pointer blindness
The fundus examination conducted by the Department of Ophthalmology of Jiangsu Provincial People's Hospital showed that the light reflection in the center of the macular disappeared and the local pigment epithelium changed, and the right eye vision was only 0.3. OCT examination revealed that the cell layer of the yellow spot of Binbin was partially broken.
"The macula is the region with the most abundant information collected by the human eye. It bears more than 90% of the visual function. After the photoreceptor cells die, it cannot be regenerated, so the right eye vision can never be restored." Binbin’s attending physician said that this year, She has successively received six small patients, 9-10 years old, like Binbin, who suffered permanent vision damage due to laser-burning macular area.
Not only children but also adults are easily injured by laser pointers. Shanghai netizen "TerminatorX" in January this year in Baidu Post Bar with his own personal experience, telling the serious harm of laser pen.
"TerminatorX" said that a year and a half ago, because the accidental right eye was illuminated twice by the laser pointer, the time was extremely short, but the vision suddenly dropped from 1.5 to 0.4. After the hospital examination, the macular perforation was diagnosed, and the light nerves under the retina were burnt. Fortunately, the power of this laser pen is below 100mw, and it can't ignite matches. So after one week, the macular perforation is closed and the visual acuity is restored to 1.0. However, the central vision is permanently lost. You can only use the residual light to see the object. You can barely see the text, but the ability to see the picture is completely lost. The netizen "has changed for you" and regrets playing the laser pointer. He told the post that he was 18 years old and his eyesight dropped to 0.4 in an instant. He has not recovered in more than half a year.
High-power laser products
Netizens such as "TerminatorX" have called for the state to ban the sale of such health-hazardous products. However, our reporter found that dangerous laser products are still hot in the market and online.
The reporter saw that in some markets in Chaoyang District of Beijing, similar laser pens were sold. After a laser pen of only 15 yuan/piece was opened, only one red line could be shot, and the light was weak; the price was more than 60 yuan/piece of laser. The pen adds a cap to illuminate several different patterns, and the single light emitted by it is stronger. The reporter saw that these laser pens did not have 3C certification, and the 60-digit laser pen only printed the English word "DANGER" on the pen body to warn consumers. Many operators told reporters that these pens will not damage the skin, as long as they don't use the laser pointer to illuminate the eyes.
This year's "315" party CCTV exposed the harm of laser pens, and then Taobao banned the sales of laser pens. The reporter searched for "laser pens" on the Taobao website and found that the search results were blocked. Subsequently, the reporter entered the “laser†search and immediately displayed nearly 300,000 products. Most online stores attracted consumers with slogans such as “firewood, firecrackers†and “long-range shots of 1,800 metersâ€. One of them was located in Guangzhou. The store showed that the monthly sales of this high-power laser pen reached 9,296. Another online store in Jinhua, Zhejiang Province also showed that the transaction record was nearly 7,000. In the “Buyer Review†column of each online store, the reporter saw that many people gave this laser pen as a gift to the children. However, carefully browsing a number of online stores, there are few security warnings about related products.
40% laser products are harmful
In addition to the demonstration type of laser pointer, the children's laser gun also has a laser. It is understood that the laser emits a laser beam through excitation, and its intensity is reflected by the laser radiation power. The laser radiation power is too high, causing photochemical damage and thermal damage to the human body, especially for children who are still in the developmental stage, if the eyes and skin are affected. Laser radiation can have even more serious consequences. To this end, China's national standard GB7247.1-2012 "Safety of laser products, the first part: equipment classification, requirements" according to the degree of damage from low to high, the laser products are divided into the following levels: 1 class, 1M class, 2 class, 2M Class, 3R, 3B, 4, and marking requirements for each type of laser. Among them, according to the national standard GB19865-2005 "Safety of Electric Toys", the laser in the toy should meet the requirements of Class 1 laser radiation power limit.
The reporter found that the above standards have marking requirements for each type of product. For example, all products should be marked with "laser radiation" and its categories, and different categories should also be marked with different warnings, such as 3R should be marked "to avoid direct exposure to the eyes", and category 3B is marked "avoid beam illumination."
Although China does not make clear regulations on the sales of different laser products, the state regulations do not sell laser products of category 3B and above as demonstration civil products.
In response to the possible radiation hazards of laser products, the Quality Supervision Department of the General Administration of Quality Supervision, Inspection and Quarantine recently organized the monitoring of quality and safety risks of laser pens and children's laser guns. A total of 60 batches of samples were collected, including 30 batches of laser pens and children's laser guns. Times. The results showed that there were 13 batches of laser pen samples with “3B class†(ie, higher hazard category) and above categories of laser products, accounting for 43.3%. Among them, 3 batches are Class 4 laser products, the laser radiation power is up to 1440mW, which is 288 times of 3RW laser radiation power limit 5mW; there are 23 batches of children's laser gun samples for Class 2 and above laser products, accounting for 76.7%. 8 batches of 3B laser products accounted for 26.7%.
Laser products carefully made for children's toys
In response to the inspection results, the AQSIQ issued a quality and safety risk warning to remind consumers to pay attention to the radiation risks when purchasing and using laser products.
The General Administration of Quality Supervision, Inspection and Quarantine has warned that unbranded models, laser pointers without warning instructions, and children's laser guns should be avoided. When purchasing a laser pointer for teaching or office use, it is best to purchase products with laser radiation category 3R and below (that is, laser power is not more than 5mW). Non-professional users should not purchase 3B and 4 high-power laser pointers. .
Consumers should not buy laser pens as toys to prevent children from buying high-power laser pointers in vendors, shops, and networks around the school. When parents purchase laser toys, they can check the outer packaging, trial products or consult the sales staff to confirm whether the toy has a laser. It is recommended not to buy toys with laser shooting function or laser aiming function for children. If you have already purchased, you should check whether the laser radiation category is Class 1. For laser toys of more than Class 1, it is recommended to stop using it immediately.
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