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Cataracts. Analysis implies that top ingestion of vitamin A in the diet regime is associated with a decrease possibility of developing cataracts.Kadang-kadang dikenal dengan nama merek dagang Eastman Kodak Irtran-5, meskipun sebutan ini sudah lama usang. MgO murni kristal tersedia secara komersial dan hanya sedikit digunakan dalam optik inframerah.