Department of Ophthalmology, Guy Hugh Chan Refractive Surgery Centre, Hong Kong Sanatorium and Hospital, Hong Kong, China.
J Cataract Refract Surg. 2010 Jan;36(1):173-7. doi: 10.1016/j.jcrs.2009.06.046.
We describe the management of intraoperative vertical gas breakthrough (VGB) during femtosecond laser flap creation in 3 patients. All eyes were immediately re-cut using 2 different microkeratomes, and the laser in situ keratomileusis treatments were completed on the same day. There were no postoperative complications. Corneal abrasion might predispose to VGB. Management of VGB is effective using microkeratomes. Caution is advised during placement of the suction ring and in eyes with preexisting corneal abrasion or loose epithelium if femtosecond laser keratectomy is used. The approach in terms of direction of the microkeratome re-cut is fundamental to the safety and successful re-cut with a microkeratome.
我们描述了在 3 例患者中行飞秒激光制瓣时发生术中垂直气体突破（VGB）的处理方法。所有眼睛均立即使用 2 种不同的微型角膜刀重新切割，当天完成激光原位角膜磨镶术治疗。术后无并发症。角膜擦伤可能易导致 VGB。使用微型角膜刀处理 VGB 是有效的。如果使用飞秒激光角膜切削术，在放置吸引环时要小心，对于存在先前的角膜擦伤或上皮疏松的眼睛更要小心。微型角膜刀重新切割的方向对于微型角膜刀的安全和成功重新切割至关重要。
