An intrastromal corneal ring segment (ICRS) (also known as intrastromal corneal ring, corneal implant or corneal insert) is a small device surgically implanted in the cornea of the eye to correct vision.

Jun 1, 2024 · Intracorneal ring segments, also known as corneal implants or corneal inserts, are small, semi-circular devices that are surgically implanted into the cornea to correct vision problems such as keratoconus or astigmatism.

The intrastromal corneal ring (ICR) is designed to correct mild-to-moderate myopia by flattening the anterior corneal curvature without encroaching on the visual axis. The device is an...

Oct 28, 2022 · The Ferrara intrastromal corneal ring segments (ICRS) are designed to treat ectatic corneal disorders, especially keratoconus. They have been used to reshape keratoconic corneas to improve uncorrected visual acuity, best-corrected visual acuity, and contact lens...

Dec 29, 2016 · Intrastromal corneal ring segments (ICRS) are a reversible, powerful and useful therapeutic option for the visual rehabilitation of patients with corneal ectatic disorders, including keratoconus. They are polymethyl methacrylate (PMMA) ring-shaped devices that are...

Jun 1, 2024 · The Ferrara Intrastromal Corneal Ring Segment (ICRS) is a type of medical device used in the treatment of keratoconus, a progressive eye condition that causes the cornea to thin and bulge into a cone-like shape.

Jul 17, 2021 · An important step in the surgical decision-making is to select which type of corneal ring will be used as well as the thickness, incision site, number of corneal segments, and their symmetry. Each company has proposed nomograms for their segments, which are clinical guidelines to determine the parameters for the success of the procedure [ 18 ].

Feb 13, 2025 · In recent years, Intracorneal Ring Segments (ICRS) have become a key option for individuals seeking improved corneal stability and better visual acuity. By inserting small, semi-circular rings into the peripheral cornea, ophthalmologists can modify its shape and help distribute refractive forces more uniformly.

4 days ago · Keratoconus is a corneal ectatic disorder marked by progressive thinning of the stroma and corneal irregularity, with an estimated prevalence of 0.04% in the general population [1,2,3].The management of keratoconus includes various treatment approaches, such as contact lenses, corneal collagen cross-linking (CXL), corneal transplantation techniques, and corneal …

Jan 1, 2023 · Intrastromal corneal ring segments (ICRSs) reshape the cornea form by modifying its geometry, improving the patient's corneal surface and leading to a best vision in the majority of treated cases. ICRS implantation decreases the keratometric and refractive measures, reduces high order aberrations, and improves visual acuity.