中新网8月15日电 近年来，近视问题日益严重，成为全球性的公共卫生问题。为了解决这一问题，一种名为OK镜的特殊隐形眼镜受到关注。这种镜片能够在夜间佩戴后重塑角膜形状，从而在一定程度上延缓近视的进展。
OK镜，全称为Orthokeratology contact lens，是一种用于矫正近视和散光的硬性透气性角膜接触镜。它的工作原理是在夜间佩戴，通过外部压力改变角膜的形状，使得角膜中央区域的弧度变平，从而在白天取下镜片后，暂时性地降低一定量的近视度数。
尽管OK镜能够有效控制近视度数的增长，但医学专家明确指出，它并不能治愈近视。OK镜只是暂时性地改变了角膜的形状，并没有改变眼睛本身的生理结构。一旦停止使用，角膜会在几周内恢复到原来的形状，近视度数也会随之恢复。
对于希望使用OK镜控制近视的人来说，专家建议在医生的指导下进行评估和选择。同时，儿童和青少年的近视控制尤其重要，因为他们正处于视力发展的关键时期。
此外，专家还强调，除了使用OK镜，保持良好的用眼习惯，定期进行眼部检查，以及增加户外活动时间等措施，都是预防和控制近视的有效方法。
总之，OK镜作为一种近视控制手段，能够在一定程度上延缓近视的发展，但并不能治愈近视。因此，对于近视的预防和控制，需要综合考虑多种因素，采取科学合理的措施。
英语如下：
News Title: “OK Lenses: Cannot Cure Myopia but Can Slow Its Progression”
Keywords: OK Lenses, Myopia Control, Not Curable
News Content:
Aug 15, 2023 – In recent years, the problem of myopia has become increasingly severe, turning into a global public health issue. To address this issue, a special type of contact lens known as the OK lens has garnered attention. This lens can reshape the cornea’s shape after being worn overnight, thereby slowing down the progression of myopia to some extent.
The OK lens, formally known as Orthokeratology contact lens, is a type of rigid, breathable contact lens for correcting nearsightedness and astigmatism. Its working principle is to change the cornea’s shape under external pressure while being worn overnight, flattening the curvature of the central corneal region. This temporary reduction in myopia can be observed after the lens is removed during the day.
Although the OK lens can effectively control the increase in myopia, medical experts have clearly pointed out that it cannot cure myopia. The OK lens only temporarily changes the cornea’s shape without altering the physiological structure of the eye. Once use is discontinued, the cornea will return to its original shape within a few weeks, and the myopia will also resume.
For those who wish to use the OK lens to control myopia, experts recommend that they undergo evaluation and selection under a doctor’s guidance. Especially important is the control of myopia in children and adolescents, who are in the critical period of vision development.
Moreover, experts emphasize that, in addition to using the OK lens, maintaining good eye habits, regular eye examinations, and increasing outdoor activity time are all effective methods for preventing and controlling myopia.
In summary, as a means of controlling myopia, the OK lens can slow down its progression, but it cannot cure myopia. Therefore, for the prevention and control of myopia, it is necessary to consider multiple factors and take scientifically reasonable measures.
【来源】http://www.chinanews.com/life/2024/08-15/10269258.shtml
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