Shortsightedness is one of the most polular diseases the children easily suffered from.
the most polular disease 改成 one of the most polular diseases哦？就把“最”改成了“最之一”只是变了语义啊。句子本身语法有错误吗？one of the most 表示 不止一种。the most 会引起歧义，认为只有一种。 suffered 要用原型 suffer