Ultraviolet crosslinking of corneal collagen in combination with personalized transepithelial photorefractive keratectomy using excimer laser Microscan Visum: two-year control

Backgraund: Keratoconus is a disease characterized by thinning of the cornea and weakening of its biomechanical characteristics, which leads to decreased visual acuity and the development of irregular astigmatism. Despite the possibility of long-term stabilization of keratectasia progression with help of crosslinking therapy, there remained dissatisfaction with the refractive outcome of patients and an insufficient improvement in their quality of life. We have proposed a technology for combining ultraviolet corneal crosslinking with personalized photorefractive keratectomy (PRK) using a Microscan Visum laser from a domestic manufacturer.