title: Rate of corneal collagen crosslinking redo in private practice: risk factors and safety.
abstract: Objective. To report the rate of progression of keratectasia after primary crosslinking (CXL) and evaluate the safety and efficiency of CXL redo. Materials and Methods. We conducted a retrospective analysis of the patients who underwent CXL between 2010 and 2013 at the Beirut Eye Specialist Hospital, Lebanon. Progression of keratectasia was based on the presence of an increase in maximum keratometry of 1.00 D, a change in the map difference between two consecutive topographies of 1.00 D, a deterioration of visual acuity, or any change in the refraction. Primary and redo CXL were done using the same protocol. Results. Among the 221 eyes of 130 patients who underwent CXL, 7 eyes (3.17%) of five patients met the criteria of progression. All patients reported a history of allergic conjunctivitis and eye rubbing and progressed within 9 to 48 months. No complications were noted and all patients were stable 1 year after CXL redo. Conclusion. Allergic conjunctivitis and eye rubbing were the only risk factors associated with keratoconus progression after CXL. A close followup is thus mandatory, even years after the procedure. CXL redo seems to be a safe and efficient technique to halt the progression after a primary CXL.
authors: Saint Joseph University Hospital, Faculty of Medicine, P.O. Box 166830, Beirut, Lebanon ; Beirut Eye Specialist Hospital, Al-Mathaf Square, P.O. Box 116-5311, Beirut, Lebanon.
authors: Joelle
authors: J
authors: Antoun
authors: Saint Joseph University Hospital, Faculty of Medicine, P.O. Box 166830, Beirut, Lebanon.
authors: Elise
authors: E
authors: Slim
authors: Saint Joseph University Hospital, Faculty of Medicine, P.O. Box 166830, Beirut, Lebanon.
authors: Rami
authors: R
authors: El Hachem
authors: Saint Joseph University Hospital, Faculty of Medicine, P.O. Box 166830, Beirut, Lebanon.
authors: Elias
authors: E
authors: Chelala
authors: Saint Joseph University Hospital, Faculty of Medicine, P.O. Box 166830, Beirut, Lebanon.
authors: Elyse
authors: E
authors: Jabbour
authors: Beirut Eye Specialist Hospital, Al-Mathaf Square, P.O. Box 116-5311, Beirut, Lebanon.
authors: Georges
authors: G
authors: Cherfan
authors: Beirut Eye Specialist Hospital, Al-Mathaf Square, P.O. Box 116-5311, Beirut, Lebanon ; Mediclinic, Dubai Mall, Dubai, UAE.
authors: Elias F
authors: EF
authors: Jarade