AIM: To elucidate the safety and visual quality of implantable collamer lens with central hole (ICL V4c) implantation for correcting moderate high myopia at least 5y. METHODS: This retrospective study was conducted on 58 patients (114 eyes) who were followed up 5y after ICL V4c implantation. The observation done before 1d, 1mo, 1 or more surgical procedure. acuity, subjective refraction, intrao...

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 compare the objective and subjective outcome of implantable collamer lenses (ICLs; Staar Surgical, Monrovia, CA) versus Veriflex lenses (AMO, Santa Ana, CA) for the correction of moderately high myopia. METHODS A prospective randomized comparative eye study was performed on 24 patients with bilateral myopia that ranged from -6 to -14.5 diopters (D). One eye was implanted with an IC...

BACKGROUD The Implantable Collamer Lens (ICL) has been used widely for refractive errors, We performed this prospective randomized comparative study to compare postoperative intraocular pressure (IOP) and vaults of the eyes implanted with conventional ICL and central hole ICL. METHODS This study evaluated 44 eyes of 22 patients who underwent central hole ICL implantation in one eye and conven...

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 assess the efficacy of high-frequency ultrasound biomicroscopy (UBM) in improving the accuracy of phakic intraocular lens (pIOL) sizing by increasing the incidence of acceptable postoperative vault. SETTING Multiple private practices, United States. DESIGN Evaluation of diagnostic test or technology. METHODS This prospective multicenter clinical study evaluated eyes having pIOL...