Have you ever wondered why your child reads every day? The lighting environment plays a crucial role in this habit. Most regular light bulbs emit a reddish light, not the pure white light of natural sunlight. This kind of light reduces the contrast between black and white, making it harder for the eyes to distinguish details. As a result, children tend to bring their eyes closer to the book to see the text clearly. Additionally, since these are point light sources, they can cause glare and large shadows, which are harmful to eye health.
When reading under such lighting for long periods, the eyes become tired quickly. Even fluorescent lights, though they emit white light, have their own issues. They are powered by 50Hz AC, causing the brightness to fluctuate 100 times per second—this is known as the stroboscopic effect. Just like how watching TV or movies with a similar flicker rate can make your eyes feel tired, studying under such lights for extended periods can lead to visual discomfort and even contribute to myopia.
Recent studies suggest that using a light source that minimizes eye strain is key to preventing myopia in children. Today, there are many "eye protection" lamps on the market, such as brands like Philips, Panasonic, Jiasheng, Fu Neng, Mingda, and Jianshi, with prices ranging from 100 to 500 yuan. These modern lamps are designed based on the illumination technology used in color liquid crystal displays. They emit stable, flicker-free white light that closely resembles natural daylight, addressing the shortcomings of traditional lighting and meeting the needs of students who study for long hours.
These lamps have been shown to effectively reduce eye fatigue and slow down the progression of myopia, making them an ideal choice for healthy reading environments.
Comparison of Key Features:
- Standard lamps use 220V, 50Hz AC power, creating 100 stroboscopic flashes per second—this can cause eye strain and may contribute to myopia over time.
- Eye protection desk lamps process the 220V, 50Hz AC signal to produce steady, flicker-free light, helping to reduce eye fatigue and protect vision.
- Traditional lamps often emit either cold white (6500K) or warm red (2700K) light, both of which are not ideal for prolonged reading.
- Eye protection lamps provide a soft, natural white light that is easier on the eyes and supports better visual comfort during study sessions.
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