How Tears Work National Eye Institute

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Descrição

Tears keep your eyes wet and smooth, and they help focus light so you can see clearly. They also protect your eyes from infections and irritating things, like dirt and dust. Find out what tears are made of and how they protect your eyes.
How Tears Work  National Eye Institute
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How Tears Work  National Eye Institute
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How Tears Work  National Eye Institute
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How Tears Work  National Eye Institute
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How Tears Work  National Eye Institute
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How Tears Work  National Eye Institute
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How Tears Work  National Eye Institute
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How Tears Work  National Eye Institute
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How Tears Work  National Eye Institute
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How Tears Work  National Eye Institute
How Tears Work National Eye Institute
How Tears Work  National Eye Institute
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de por adulto (o preço varia de acordo com o tamanho do grupo)