目前没有研究显示为什么大量阅读会导致这一结果，但是由于长时间聚焦近处的物体需要眼部肌肉持续收缩以保证视网膜保持需要的形状，因此这种眼肌的持续收缩状态可能会使眼球受到拉伸，长期如此，其原有形状可能会被永久地改变，从而导致近视产生。

But focusing on close objects involves contraction of muscles controlling the shape of the eye's lens. And one possibility is that "this constant contraction may stretch the eyeball.

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其中维持最长时间的治疗方法是医生怀疑是由于持续的，潜伏的细菌感染，并由此开出长期或者无限期的抗生素药方。

For the longest time, doctors suspected that the condition was caused by persistent, hidden bacterial infections and sometimes prescribed long-term or open-ended antibiotic therapy.

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