The big bubble technique has become the technique of choice for performing deep anterior lamellar keratoplasty (DALK) since its inception in 2002. The main challenge with this technique is in achieving a big bubble while preventing inadvertent perforation of the Descemet's membrane. Although femtosecond lasers have increased the safety, accuracy, and predictability of corneal dissection in DALK, the challenge of achieving a big bubble still exists. To overcome this challenge, Zeimer Z8 Femto LDV has launched a new software module for DALK, which has an added advantage of real-time optical coherence tomography-assisted femtosecond tunnel creation for achieving a big bubble.

中文翻译：

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一种使用术中光学相干断层扫描引导的深前板层角膜移植术创建隧道的新方法。

自 2002 年问世以来，大气泡技术已成为进行深部前板层角膜移植术 (DALK) 的首选技术。该技术的主要挑战是在实现大气泡的同时防止后弹力膜意外穿孔。尽管飞秒激光提高了 DALK 角膜剥离的安全性、准确性和可预测性，但实现大气泡的挑战仍然存在。为了克服这一挑战，Zeimer Z8 Femto LDV 为 DALK 推出了一个新的软件模块，该模块具有实时光学相干断层扫描辅助飞秒隧道创建的额外优势，可实现大气泡。