Purpose. To evaluate the long-term safety and clinical outcome of phakic Visian toric implantable collamer lens (ICL) insertion after corneal collagen cross-linking (CXL) in progressive keratoconus. Methods. This was a retrospective study of 30 eyes (19 patients), with progressive keratoconus, who underwent sequential CXL followed by Visian toric ICL implantation after 6 months. Results. At bas...

PURPOSE To evaluate the safety and clinical outcome of phakic Visian toric implantable collamer lens (ICL) (STAAR Surgical, Monrovia, CA) insertion after corneal collagen cross-linking (CXL) in progressive keratoconus. METHODS A retrospective study examined the results of the two-step CXL and Visian toric ICL implantation in 16 eyes of 10 patients with keratoconus. The two procedures were don...

PURPOSE To describe a case of cystoid macular edema (CME) developing after posterior chamber toric phakic intraocular lens (PIOL) implantation. METHODS Case report. RESULTS A 33-year-old male underwent implantation of toric implantable collamer lenses (ICL), a new generation of PIOLs, for both eyes. Preoperative best spectacle-corrected distance visual acuity (BCVA) was 20/25 in the right e...

PURPOSE To assess the predictability, stability, safety, and efficacy of a collagen copolymer toric phakic intraocular lens (pIOL) to correct moderate and high astigmatism. SETTING Fernández-Vega Ophthalmological Institute, Oviedo, Spain. DESIGN Case series. METHODS After implantation of the TV4b toric Implantable Collamer Lens pIOL, the uncorrected (UDVA) and corrected (CDVA) distance vi...

PURPOSE To compare the central postoperative vault of a phakic intraocular lens (pIOL) to correct myopia, myopic astigmatism, and hyperopia and identify ocular and lens parameters that might predict the vault amount. SETTING Fernández-Vega Ophthalmological Institute, Oviedo, Spain. DESIGN Cohort study. METHODS Three months after implantation of Implantable Collamer Lens pIOLs to correct m...

keratoconus is a non-inflammatory, progressive thinning process of the cornea. it is a relatively common disorder of unknown etiology that can involve each layer of the cornea and often leads to high myopia and astigmatism. computer- assisted corneal topography devices are valuable diagnostic tools for the diagnosis of subclinical keratoconus and for tracking the progression of the disease. the...