Treatment of keratoconus with Ferrara ICRS and consideration of the efficacy of the Ferrara nomogram in a 5-year follow-up.

Purpose: To investigate Ferrara intrastromal ring segments (FIRS) as a therapeutic opportunity to treat keratoconus (KC), to reduce the necessity for cornea transplant, and to improve quality of vision of patients with this disease. We demonstrate that the procedure is safe, reversible, and reliable, and can delay/stop the KC progression.

Methods: A total of 130 eyes of 83 patients with KC, intolerant to contact lenses, implanted with FIRS were considered.

Posterior chamber phakic intraocular lens (ICL) for hyperopia: ten-year follow-up.

Purpose: To evaluate the long-term safety, efficacy, predictability, and stability of implantation of a Collamer implantable contact lens (ICL) (Staar) to correct hyperopic refractive errors.

Settings: Ophthalmology Department, Santa Rita Hospital, Vercelli, Italy.

Methods: Fifty-nine eyes of 34 patients with hyperopia had implantation of an ICL.