The Implantable Collamer Lens with a central port: review of the literature

Abstract

The purpose of this review is to summarize preclinical and clinical data from publications appearing in the peer-reviewed scientific literature relevant to the safety and effectiveness of the EVO Implantable Collamer Lens (ICL) posterior chamber phakic refractive lens with a central port (V4c Visian ICL with KS Aquaport, STAAR Surgical, Inc.). A literature search was conducted using PubMed.gov to identify all articles relating to the EVO ICL. Articles were examined for their relevance, and the references cited in each article were also searched for additional relevant publications. On the basis of a total of 67 preclinical studies and clinical reports, including effectiveness data on 1,905 eyes with average weighted follow-up of 12.5 months and safety data on 4,196 eyes with weighted average follow up of 14.0 months, the EVO ICL is safe and effective for the correction of a broad range of refractive errors. High levels of postoperative uncorrected visual acuity, refractive predictability, and stability demonstrate the effectiveness of the EVO ICL. Safety data suggest reduced rates of anterior subcapsular cataract and pupillary block compared with earlier models. Improved safety and proven effectiveness make EVO an attractive option for surgeons and patients.

Posterior-Chamber Phakic Intraocular Lens Implantation in Patients over 40 Years of Age

“…However, all these studies evaluated patients implanted with older ICL models. With the present V4c ICL, recent long-term studies [13,14] and meta-analysis reported no postoperative complications [1,2]. Kamiya et al [3] and Takahashi et al [4], in an older patient sample (with 6 months of follow-up) similar to ours, did not report either asymptomatic or symptomatic cataract formation.…”

“…Note also that most eyes had an UDVA of 20/25 or better (>75%, Figure 1(a)). Like the one we have introduced, there are different studies in the literature analysing this lens with short, medium, and long follow-up periods [1,2]. In order to compare our outcomes with those published previously, we have considered for the discussion only those studies reporting data for the V4c ICL model at 1 year of follow-up.…”

“…This opening allows the physiological flow of aqueous, thus making Nd : YAG peripheral iridotomies or intraoperative iridectomies unnecessary. Recent reviews and meta-analysis have confirmed its safety and effectiveness in moderately and highly myopic eyes throughout short, medium, and long follow-up periods [ 1 , 2 ]. With these outcomes, and bearing in mind that no vision-threatening complications occurred, the use of this IOL is recommended for the correction of a wide range of myopic errors.…”

Spontaneous rotation of a toric implantable collamer lens related to abnormal ciliary body morphology: a case report

“…A key factor in determining refractive outcome after TICL implantation is postoperative rotational stability. Packer et al [4] reported that 0.33% (10/2970) of patients that underwent V4C implants required a second adjustment surgery and completely achieved the desired results subsequently. Similar occurrence rate (0.32%) was disclosed in retrospective analysis of 310 TICLs implantations in our refractive center since 2014 after one patient with a clear history of trauma was excluded.…”

Pupillary capture of implantable collamer lens after oral antidepressants

“…Serious postoperative complications of ICL implantation, including cataract, pupillary block, or lens dislocation, can occur, but the incidence is low. 2,3 We report the case of spontaneous ICL dislocation and pupillary capture and discuss the possible association with intake of oral antidepressants.…”