Tiny worms spread throughout the body. This incites the body's immune system to attempt to fight the invader. But the body's intense immune response can destroy the eye nerves.细小的蠕虫会扩散到全身,这会导致人体免疫系统试图抗击入侵者.但人体强烈的免疫反应会破坏眼部神经.
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