TechniquesFemtosecond Laser-Assisted Penetrating Keratoplasty for Treating Infective KeratitisHosny, Mohamed MD, FRCSEd; Marrie, Ayah MD; Anis, Mohamed MD, FRCS; El Shewy, Ahmed MDAuthor Information Department of Ophthalmology, Cairo University, Giza, Cairo, Egypt. Correspondence: Mohamed Hosny, MD, FRCSEd, Department of Ophthalmology, Cairo University, 84 Shehab St, Mohandeseen, Giza, Cairo 12411, Egypt (e-mail: [email protected]). The authors have no funding or conflicts of interest to disclose. Cornea: March 2020 - Volume 39 - Issue 3 - p 382-385 doi: 10.1097/ICO.0000000000002163 Buy Metrics Abstract Purpose: To report the results of penetrating keratoplasty (PKP) assisted by femtosecond laser in the treatment of persistent infective keratitis. Methods: Seven eyes of 7 patients with diagnosed infective keratitis were recruited. They showed no improvement on maximal medical therapy for a week. The causative organisms were Pseudomonas aeruginosa in 3 cases and Fusarium in 4 cases. All cases underwent femtosecond laser-assisted PKP with a mushroom-shaped cut. Postoperative antimicrobial medications were continued for 8–12 weeks. Sutures were removed after 6 months. Therapeutic success was defined as eradication of primary infection. Functional success was considered when visual function improves to 20/200 or better. Results: All 7 eyes underwent femtosecond laser-assisted PKP. There were no intraoperative complications, and all patients had uneventful recipient cornea separation. Anatomic, therapeutic, and functional success was achieved in all patients. During the 6-month follow-up period, no recurrence of infection was reported. The average preoperative corrected distance visual acuity (CDVA) was 2.07 log of the minimal angle of resolution (LogMAR) ± 0.21, whereas at 6 months postoperatively, the average CDVA was 0.17 LogMAR ± 0.13, with a P value of 0.00025. Conclusions: Femtosecond laser-assisted PKP was found to be an effective method for treating infective keratitis (particularly that caused by Pseudomonas aeruginosa and Fusarium) that did not respond to medical treatment. Early surgical intervention before the disease becomes advanced is recommended. Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.