1. Excise the vitreous body of be put into trouble with vitreous body cutter, issue inject antibiotic to vitreous body antrum, vein and ball conjunctiva.

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2. Silica sol is a kind of colloid solution well dispersing corpuscles of silica in water. From the special characteristic and properties, summarize kinds of manufactures of silica sol.

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3. Currently the main products: garnet, omphacite, fused silica pieces, fused silica sand, flour, natural silica, quartz sand, powder, silicon carbide, quartz crucibles and other refractories.

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4. Currently the main products: garnet, omphacite, fused silica pieces, fused silica sand, flour, natural silica, quartz sand, powder, silicon carbide, quartz crucibles and other refractories.

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5. Causes of vision decline at forepart had something to do with some factors, such as corneal edema, retinal hemorrhage, vitreous body turbidity, stuffing in Vitreous cavity.

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