Intra-stromal implants or Intra corneal Rings, Segments or ICRs were designed and developed
to be used as a correction for reducing or eliminating myopia.
They are also used for the correction of keratoconus if properly implanted into the stroma of the cornea,
outside of the optic zone.
Intra-stromal segments are now becoming a normal tool in the surgeon's arsenal against poor vision.
Unlike the original segments that necessitated the surgeon to purchase special equipment
and special instrumentation, segments like the KERATACx™ Series intra corneal rings
can be implanted by surgeons with or without the new Vejarano Delaminator System™.
Improvements in Pachymetry and corneal topography have increased the use of intra-stromal segments,
intra corneal rings or implants.
INTRA STROMAL INLAYS OR INTRA CORNEAL RINGS - INTRODUCTION
The implant changes the surface shape of the cornea following implantation because they are implanted
approximately 70% - 75% of the way into the periphery of the cornea thru a small radial incision
and tunnel created in the stroma.
The tunnel or elongated pocket can be created by using an manual instrument or a laser following the wound
puncture, which must not be to deep so as to perforate the cornea. Once formed, the implant is carefully
inserted into the tunnel and the shape of the cornea is changed so as to create better vision for the patient.
The amount of correction depends upon the thickness of the implant and they are designed to be used in pairs.
They may be implanted in a clockwise or counter clockwise direction depending on the intra stromal tunnel and
surgical technique due to the hole at each end. This hole may be used for manipulation and removal.
The optical zone of KERATACx™ is 4.8mm - 5.2mm, KERATACx Plus™ is 5.4mm - 5.6mm,
KERATACx SP™ is 5.8 - 6.0mm and KERATACx V™ offers an optical zone of 6.8mm - 7.0mm
Reducing or eliminating Myopia or correction of Keratoconus
The design of KERATACx™ segments allows for their extraction from either end or replacement if necessary.
They are transparent and each ring covers 160º degrees.
They are manufactured from the world’s finest PMMA and are currently available from
100 micron to 450 micron in 25 micron increments.
Vejarano Delaminator System™
The World's First affordable corneal delaminating system for Keratoconus, designed to improve results and prevent
corneal perforations, and manufactured of the finest medical grade Titanium or Stainless steel.
Surgeons around the world report that patients experience No Glare, Halos, Sparkles or Star bursts, after implantation
of KERATACx™ Series branded ICRs with the Vejarano Delaminator System™.
Intra stromal inlays