Implantable collamer lenses are a type of posterior chamber phakic intraocular lens (pIOL). pIOL are usually used for high degrees of refractive error or when corneal refractive surgery is contraindicated. Advantages of pIOLs over corneal refractive surgery also include quicker recovery and reversibility.

The Visian ICL is made from Collamer, a biocompatible material created and used exclusively by STAAR Surgical. This lens is able to treat a large range of refractive error varying by region. Contact us to see if the product is available in your region.

Low-order aberrations (defocus and astigmatism), coma, and subjective visual quality had no significant difference between ICL V4 implantation and ICL V4c implantation (P >.05).The 2 kinds of ICL Visian ICL V4 and Visian ICL V4c had similar efficacy of visual quality for high myopia.

V4 TICL, which is stored in NaCl, adjusts to the internal environment and is enlarged about 1.05 times in the eye within 2–3 days. Because of this property, V4 TICL might be vulnerable to rotation before it fully enlarges and becomes fixed between the ciliary sulcus.

In summary, ICL implantation to treat high myopia using Visian ICL V4c or Visian ICL V4 achieved similar efficacy, but Visian ICL V4c caused more HOA, especially spherical aberration, but there was no difference in CF and subjective visual quality.

Apr 12, 2017 · Low-order aberrations (defocus and astigmatism), coma, and subjective visual quality had no significant difference between ICL V4 implantation and ICL V4c implantation (P >.05). The 2 kinds of ICL Visian ICL V4 and Visian ICL V4c had similar efficacy of visual quality for high myopia.

The EVO Visian implantable Collamer lens (ICL, STAAR Surgical, Monrovia, CA, USA) is a posterior chamber phakic intraocular lens that has been widely used for refractive surgery. The ICL can be used regardless of corneal thickness and topography.

Long-term ICL V4c and ICL V4 implantations are safe, effective, and stable for high myopia correction. ICL V4c can potentially reduce the risk of lens opacification and may be more tolerant to low vault than ICL V4.

Sep 26, 2018 · The EVO ICL Model V4c is a single piece posterior chamber phakic refractive intraocular lens designed with a central convex/concave optical zone diameter of 4.9–5.8 mm and a 360 μm central port. The EVO ICL Model V5 includes …

Aug 1, 2024 · The ICL V4 model yielded satisfactory results for myopia and astigmatism correction after 17 years. Visian ICL implantation demonstrated long-term visual and refractive stability, indicating it as a low-risk procedure.