Comparative Clinical Outcomes Of Phakic Iol: Implantable Contact Lens (Ipcl) Versus Implantable Collamer Lens (Icl)

This study aims to compare the clinical outcomes of two types of phakic intraocular lenses (IOLs) designed for the correction of myopia and astigmatism: the IPCL (Implantable Contact Lens, EYEOL, UK), a single-piece posterior chamber lens made from a hybrid hydrophilic acrylic material, and the ICL (Implantable Collamer Lens, Staar Surgical, USA), which is made from Collamer material.

Minoru Tomita Eye Clinic Ginza, Tokyo, Japan

A comparative analysis was conducted among 465 patients fitted with the IPCL and 107 patients fitted with the ICL, all of whom presented with myopia and astigmatism. The study evaluated pre-operative and post-operative visual acuity at 1, 3, and 6 months, as well as corneal endothelial cell density assessed both pre-operatively and 3 months post-operatively.

Pre-operative evaluations showed UDVA of 1.26±0.31 logMAR, CDVA of -0.15±0.05 logMAR, MRSE of -5.98±3.05D in IPCL patients. In contrast, ICL patients had a pre-operative UDVA of 1.38±0.20 logMAR, CDVA of -0.14±0.08 logMAR, MRSE of –7.79±2.80D. At 6 months, IPCL patients achieved a UDVA of -0.15±0.06 logMAR, CDVA of -0.17±0.03 logMAR, and MRSE of 0.15±0.34D, while ICL patients reached a UDVA of -0.15±0.05 logMAR, CDVA of -0.17±0.02 logMAR, and MRSE of 0.32±0.37D. Three months post-operatively, the assessment of endothelial cell density (ECD) changes demonstrated no significant differences in reduction rates. Additionally, there were no significant differences in visual acuity improvement at 6 months between the two lens types.

Both IPCL and ICL lenses significantly improve visual acuity in patients with myopia and astigmatism. There are no significant differences in the outcomes of visual acuity or endothelial cell density (ECD) changes between the two, confirming their efficacy in treating these conditions.