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准分子激光和飞秒激光都是现代视力矫正手术中常见的技术,它们的区别主要出现在手术时所使用的激光和手术过程中的步骤上。点击进一步了解详情
准分子激光手术EK是通过激光将角膜表层削薄,改变角膜曲率进行矫正的手术,手术时需要先用电子显微镜扫描角膜的形状,确定手术的目标,然后通过激光照射角膜表面,逐层削薄角膜,最后将角膜表面还原,术后待角膜恢复即可恢复正常视力。此种手术不需要切割角膜,术后更容易恢复,但在手术中会有激光和角膜表面的接触,可能会引起少量的疼痛和不适。
飞秒激光则是通过激光制造微细气泡,将角膜层层切割离形成角膜瓣,然后再通过准分子激光矫正角膜曲率,最后再将角膜瓣复位合并。与EK手术不同的是,飞秒手术需要切割角膜,手术时间更长,但是它可以更精准地切割角膜,减少手术中的疼痛和不适,同时也可以更好地适用于不规则角膜和近视度数较高的患者。
自“神五”到“神十六”系列载人航天飞船的进程中,已有超过400名神舟功臣在深圳博爱曙光眼科的诊治矫正之下,成功摘镜。该医院目前可开展德国蔡司全飞秒smile3.0、美国intralase150半飞秒、ICL晶体植入术、LASIK等16款主流近视矫正手术,其中ICL及PRL晶体植入术曾为2800度超高度近视患者成功矫正近视。医院先后获得“青少年近视防控联盟医院、深圳市近视高危人群检查定点联盟医院”等称号。
准分子激光手术EK和飞秒手术不管是手术方式还是术后恢复时间都有差别,需要参照医生建议进行选择。做近视手术推荐深圳友华普惠眼科,是一家专注激光近视矫正以及视觉质量保障的专业眼科机构,非常值得信赖。【点击了解近视手术多少钱】
EK手术与飞秒手术最大的区别是制作角膜瓣的过程,前者是用化学试剂起瓣,而后者是全程飞秒激光做瓣,EK手术无需制作角膜基质瓣,因此也不会出现角膜瓣相关的各种并发症术后角膜上皮下雾状混浊也明显小于PRK。EK尤其适合于从事对抗性职业或其它容易伤及眼睛工作的患者以及角膜偏薄的患者。但EK术后最佳视力恢复慢,一般在3个月到半年左右,相对来说,飞秒的术后恢复时间就会短一些,不过做完近视手术,都要注意用眼卫生,不能过度用眼以影响手术效果。
想要了解更多关于近视手术的相关信息,推荐咨询深圳友华普惠眼科。友华普惠眼科医学验光配镜中心是以专业的眼科机构为后盾,集验光、配镜、近视眼防治、各类弱视、斜视诊疗训练为一体的医院验光配镜中心。拥有视光学专家、专业验光师和经验丰富的配镜师,配备全自动化进口验光、检测设备,为广大视力患者提供专业、全面的医学验光、眼健康检查、科学配镜等一体化服务。力求用优质的服务和专业的技术为患者提供高品质的视觉健康享受。
准分子激光和飞秒激光是两种不同的激光。准分子激光是一种超紫外线光,其波长是193nm,主要原理是通过打破细胞之间的分子键,直接使组织气化产生作用,在近视眼中主要是通过改变角膜形态来完成对屈光不正的矫正。飞秒激光是远红外线脉冲,大约波长是1053nm,主要作用是在组织之间产生小气泡,气泡通过爆破原理达到分离作用,在近视眼手术中,主要是通过上下两层的爆破,取出透镜、达到矫正近视的作用,所以两者原理、产生的机制都不同。现在做飞秒激光的人群越来越多,因为其和准分子相比有优点,比如其安全性要更高。可以根据人群个体化差异调节瓣的厚度,瓣、蒂的位置,每个人都是用无菌治疗包,感染风险更小
飞秒激光是利用飞秒技术进行IK手术。而因为手术的原理不同,EK手术不能使用飞秒技术。
IK和EK分属两种不同的手术方法,适用于不同的人和症状。
飞秒激光要更先进,可以制作出更均匀更完美的角膜瓣,能完全避免金属角膜刀制瓣时可能出现的破碎瓣,游离瓣,纽扣瓣,医源交叉感染,医源性像差等并发症,而且术后用药时间短,角膜上皮下雾状混浊的发生率低,视觉质量更佳。另外,做近视手术也需要考虑自身条件,建议先上眼科检查一下,毕竟不是所有人都适合近视手术的
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