There are many options for the correction of refractive errors today and these include the use of the excimer laser platform - like photorefractive keratectomy ( prk ) , laser in situ keratomileusis ( lasik ) , laser subepithelial keratomileusis ( lasek ) , and epilasik ; and those that require the placement of an intraocular lens inside the eye . each procedure , however , has pros and cons and the best procedure for a patient is ideally decided after a detailed examination of the eye by the surgeon 时至今日，用以矫正屈光不正的方法有很多种，包括：准分子激光技术例如激光屈光角膜切除术( photorefractivekeratectomy - prk ) 、角膜激光矫视手术( laserinsitukeratomileusis - lasik ) 、角膜上皮切割激光矫视手术( lasersubepithelialkeratomileusis - lasek ) 、 epilasik及人工晶体植入等等。每种手术皆有其利弊，病人宜先接受详细眼科检查，再由医生建议合适的手术。
The act of helping oneself , refers that during the continuing violations , in the state of being difficult to timely protection and restoration of rights under relying on the public relief , according to the right of helping oneself , the actor could act the action of detaining the perpetrator of the unlawful act , or seizing , detaining and destroying his property 自救行为与正当防卫行为、紧急避险行为都是正对不正的行为,实质是一致的,但两者的待遇却大相径庭。对于自救行为的合法性、构成要件等在理论界一直都众说纷纭。本文运用总结、概括、对比、引证等研究方法对自救行为相关问题作了较详尽的论述。
