del lentículo por incisión pequeña (SMILE). Material y métodos: Estudio prospectivo, descriptivo y observacional. Se estudiaron las complicaciones intraoperatorias y postoperatorias de los pacientes sometidos a cirugía refractiva con la técnica quirúr-
El entrecruzamiento de fibras de colágeno corneales o crosslinking, una técnica que ha cobrado cada vez más popularidad ya que ha demostrado desacelerar la progresión del queratocono, ha evolucionado en relación con el tiempo de aplicación, la posibilidad de mantener el epitelio, la cantidad de energía y las edades a las que se aplica, observándose en la mayoría de los casos buenos resultados con pocas complicaciones. Presentamos el caso de un paciente en edad pediátrica que desarrolló una fibrosis subepitelial de grado IV posterior a un procedimiento de crosslinking transepitelial pulsado acelerado. Se hace una revisión de los posibles factores desencadenantes de esta fibrosis antes y después de aplicar el tratamiento.
Purpose: To summarize the complications and their incidence in the learning curve of the "small incision lenticule extraction (SMILE)" surgical technique. Material and methods: Prospective, descriptive and observational study. We evaluated the intraoperative and postoperative complications of patients undergoing SMILE refractive surgery with femtosecond laser from January 2015 to January 2018 at the Hospital Nuestra Señora de la Luz, Mexico. The platform used for surgery was the VisuMax by Zeiss. Statistical analysis was performed with Excel. Results: 526 eyes of 263 patients undergoing "SMILE" refractive surgery were studied. Intraoperative complications were observed in 70 of 526 eyes. The main complication was difficult lenticule extraction in 27 eyes (5.13%), epithelial abrasion in 15 eyes (2.85%), incision tear 12 in eyes (2.28%), lost vacuum in 7 eyes (1.33%), incomplete lenticule removal in 4 eyes (0.76%), black spot in 4 eyes (0.76%) and wound bleeding in 1 eye (0.19%). All complications were resolved intraoperatively. Conclusions: SMILE surgical technique is safe, showing excellent results in final visual acuity.
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