1. Intraoperative Optical Coherence Tomography–Guided Femtosecond Laser–Assisted Deep Anterior Lamellar Keratoplasty

    Intraoperative Optical Coherence Tomography–Guided Femtosecond Laser–Assisted Deep Anterior Lamellar Keratoplasty

    Purpose: To describe the feasibility and outcomes of intraoperative optical coherence tomography (OCT)–guided, femtosecond laser –assisted deep anterior lamellar keratoplasty in which the lamellar and tunnel cuts were completed by laser. Methods: The Ziemer Z8 system was used to scan the corneas intraoperatively and guide the stromal lamellar and tunnel cuts created by the laser. Thirty porcine eyes and 3 human cadaver globes were used to evaluate the accuracy of laser-created intrastromal tunnels and the feasibility of achieving big-bubble pneumatic dissection. The tunnel distance above the Descemet membrane ( D t-dm ) was set at 100 and 130 μm, and the ...

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