Revention and Management of Complications in the Perioperative Period of SMILE

Objective: To analyze the data of femtosecond laser small incision corneal stroma lens extractions (SMILE) performed in Aiyan Ophthalmology Hospital, summarize the intraopearative and postoperative complications and treatment. Methods: From January 2018 to November 2018, SMILE surgery was performed on 515 cases (1015 eyes) of myopia or astigmatism in Aiyan Ophthalmology Hospital in this retrospective series of case studies. A retrospective analysis of the occurrence of intraoperative and postoperative complications was performed. Results: The overall incidence of complications was 7.88%, of which 2 eyes (0.19%) were negatively affected by negative pressure, scans showed 3 eyes (0.29%) had black areas, 12 eyes (1.18%) had an incision tear, in 7 eyes (0.68%) the corneal stroma lens was difficult to find, 5 eyes (0.49%) had a residual lens, 32 eyes (3.10%) had an epithelial defect from the incision, 5 eyes (0.49%) had bleeding in the incision area, 10 eyes (0.98%) had diffuse lamellar keratitis, 1 eye (0.09%) had an intersegmental epithelial implantation, and 3 eyes (0.29%) had the remains of foreign matter under the corneal cap. Vision was restored after appropriate treatment for complications to achieve the best corrected visual acuity. Conclusion: SMILE surgery as a new type of corneal refractive surgery for the treatment of myopic astigmatism has few complications. Effective prevention and treatment of intraoperative and postoperative complications is essential for surgical safety. Key words: femtosecond laser small incision corneal stroma lens extraction; complications; prevention