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Children as young as three should be wearing sunglasses when playing outside in bright weather, say specialists.
Toddlers are especially vulnerable to the sun's rays, they claim.
The lenses of a child's eye are more transparent than an adult's, allowing more short-wavelength light to reach the retina.
It is exposure to this light, and the sun's UV rays, [link widoczny dla zalogowanych] that can lead to a variety of vision disorders, research by the American Optometric Association suggests.
Up to 80 per cent of sun exposure takes place before the age of 18 as children spend a lot of time outdoors in the summer.
Sonal Rughani, of the Royal National Institute for the Blind, [link widoczny dla zalogowanych] said: 'We encourage children to look after their eyes, as excessive exposure to sunlight can potentially damage the eyes and may contribute to the onset of other eye-related conditions such as cataracts.'
But parents must make sure they buy a pair of sunglasses with the necessary protection.
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Citi China's Yingli Green Energy Holding Company stock rating from "position" reduced to "sell" and said polysilicon plant in view of the company into higher production costs, declining profit margins than its larger competitors.
"Price elasticity of demand with reference to the overall market and the current price level,nickel powder supplier, the first half of next year, the price of solar modules will have fallen sharply,nickel powder uses, Yingli downward pressure on profit margins."
Zhou Yingli report results on the third-quarter profit quadrupled. However, the company has made previously expected,nickel powder coat, as the global polysilicon production capacity,nickel powder, said the increase in profit margins in coming quarters may be lower. That time in Germany and other European countries have begun to reduce subsidies for solar energy industry, indicates that the profits of solar silicon plant will inevitably be squeezed.
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