In most cases laser eye surgery is safe. But, like any other surgical procedure there are certain risks that need to be addressed. A large number of patients have been able to stop wearing glasses after surgery and have achieved 20/40 vision, or better, that have been cases where patients have a decreased vision after surgery. There are some things that need to be taken into account before choosing a "safe" laser eye surgery.
Corneal Haze
This is a common side effect of laser eye surgery, but usually fades with time, although not always. It can't be corrected with contact lenses or glasses, but only a further surgery procedure to treat scarring, such as CustomVue WaveFront.
Decreased 20/20 Vision
Many types of laser eye surgery can leave scarred tissue, resulting in a 20/20 vision lower than the one the patient used to experience before treatment. Over corrected or under corrected vision is also a common side effect of laser eye surgery. In such cases, glasses or contact lenses may still be needed or the patient may be recommended a second surgery for more effectiveness.
Vision Loss
Laser surgery procedures which use a microkeratome blade to cut a flap involve the risk of cutting it off instead of leaving it hinged. If the flap is damaged, the patient may suffer vision loss. Successful procedures that use a blade can still leave small imperfections that can result in blurred vision.
Post Operative Infections
Choosing a skilled and experienced surgeon is certainly helpful to make laser eye surgery safe, but there's always the risk of post operative infection. This risk is higher in PRK and LASEK than LASIK. In most cases, these infections can be treated with medication and usually don't turn into long-term problems. However, more sever complications ca result into temporary vision loss or even worse. The healing process is longer for PRK and LASEK than LASIK.
It is important to not have extremely high expectations about laser eye surgery, This treatment may not be suitable for some people. There are some things to consider, such as "Is laser eye surgery safe?", "are your expectations reasonable?", and "Is laser eye surgery safe for you?" In order to answer these questions you have to learn more about what to expect from each type of laser eye surgery. You should know the positives and negatives of them all, and talk to your doctor about what is best for you.
Laser eye surgery is not a good choice for everyone. Pregnant women, people who suffer from diabetes, patients who have problems with binocular visions, thin corneas, dry eyes or large pupils may not be good candidates for this type of treatment.
激光眼镜手术安全吗？
激光眼镜外科手术的大多数情况是安全的。但是，一些其他的外科手术有一些既定存在的风险需要去说明。大多数的病人手术以后能够停止戴眼镜，并且视力可以达到20/40，或者更好。也有一些病人手术后视力变差的案例。有一些事情需要在选择激光眼镜手术之前进行充分的估计。
角膜薄雾
这是激光眼镜手术留下的流行的副作用。但是常常随着时间而减弱，尽管并不总是这样。它不能通过镜头或者眼镜的接触来修正。但是只有通过更进一步的外科手术去治疗创伤，就像CustomVue WaveFront.
减少20/20视力
激光眼镜手术的一些情况会留下有创伤的薄纸等。导致了一个20/20 的视力，这还低于病人没有接收手术之前的视力。过于修正或者没有修正也常常是激光眼睛手术带来的副作用。在这种情况下，病人仍然需要眼镜或是接触透镜。他们也可能因为第一次手术的带来的更多的副作用被推荐去做第二次手术。
视力损失
激光外科手术的程序是用microkeratome刀片去切掉一个潜伏的风险，风险存在于切掉它代替留下它使它转移中的副翼。如果副翼被破坏，病人的视力将会遭受损失。成功的程序是，用一个刀片仍然留下一个小小的不完整性，可能导致一个亏损的视力。
加速手术感染
选择一个技术熟练和经验丰富的外科医生对激光眼镜手术的安全肯定是有帮助的，但是同时也会带来手术感染的风险。这个风险在PRK 和LASEK中高于LASIK。在大多数的案例中，这些感染是经过药物处理过的，常常不会变成一个长期的问题。然而，大多数严重的并发症会导致暂时的视力损失甚至更糟糕。对PRK 和LASEK而言，康复的过程要比LASIK更加的漫长。
这样一来，对激光眼镜手术不能抱太高的期望就显得比较重要。这种处理对一些人来说，可能是不合适的。有一些事情是值得考虑的，比如“激光眼睛手术是安全的吗？”“你的期望是合理的吗？”和“激光眼睛手术对你是安全的吗？”为了回答这些问题，你不得不学着从每一种类型的激光眼睛手术中期待什么。你应该知道它们所有的正面和负面效应。比哦妳姑且和你的医生谈论那些对你最有好处的。
激光眼睛手术并不对每一个人都是好的选择。孕妇、糖尿病患者还有那些双目视力有问题的病人，如薄角膜、干眼或大瞳孔可能不适合这种类型的手术。
不是医学专业的，翻的不对请乏味兄和各位多多指正。
| 欢迎光临 光电工程师社区 (http://bbs.oecr.com/) | Powered by Discuz! X3.2 |