Abstract
To evaluate safety and refractive efficiency after posterior chamber diffractive implantable phakic contact lens (IPCL) surgery. Aprospective non-randomized case-series study was performed on 54 myopic eyes of 27 patients who had undergone diffractive IPCL surgery. Corneal endothelial cell density (ECD), central corneal thickness (CCT), intra-ocular pressure (IOP), vault, uncorrected distance (UDVA), spherical equivalent (SE) and defocus curve, were all evaluated twelve months after surgery. The presence of cataracts was evaluated by slit-lamp during apostoperative follow-up. Mean age was 47 ± 2.62 years-old. Mean SE decreased, from -5.95 ± 2.56 D in apre-operative stage, to -0.25 ± 0.25 D twelve months after surgery. Achieved UDVA was 20/20 in 24.1% of all cases, 20/25 in 74.1% of them, and 20/32 in all remaining cases. No eyes suffered lost lines of vision. The binocular defocus curve was 0.06 ± 0.05 logMAR for a-3.0 D of defocus; 0.11 ± 0.04 logMAR for a-1.5 D of defocus, and 0.08 ± 0.03 logMAR for a0 D of defocus. Twelve months after surgery, mean ECD had decreased by 1.43 %, whereas mean CCT had increased by 0.06 %, without any significant statistical difference (p = 0.28 and p = 0.93 respectively). No difference (p: 0.86) in the vault was observed at 6 months vs.12 months, as well as between IOP measurements (p = 0.22). There were no non-intra or postoperative complications, and, specifically, no cataracts developed either. Diffractive IPCL was implanted safely. Corneal endothelial CD, CCT, vault, and IOP remained stable twelve months after surgery. Visual acuity for distance, intermediate and near sight were achieved without spectacles.
Highlights
To evaluate safety and refractive efficiency after posterior chamber diffractive implantable phakic contact lens (IPCL) surgery was performed
Visual acuity for distance, intermediate and near sight could be improved without spectacles in myopic population with presbyopia
There is the expectation of a superior quality of vision obtained with Phakic intra-ocular lens (pIOL) implantation with respect to keratorefractive surgery for the correction of high ametropias [15,16,17,18]
Summary
To evaluate safety and refractive efficiency after posterior chamber diffractive implantable phakic contact lens (IPCL) surgery was performed. The posterior chamber implantable phakic contact lens called IPCL (Care Group, India) has proved its safety and efficacy for correction of myopia and myopic astigmatism [22,23,24] and the new model, “Diffractive IPCL V 2.0”, arises as an option for presbyopia management. Based on these observations, the purpose of this work is to evaluate the safety and refractive efficiency of Diffractive IPCL V 2.0 in patients with myopia and/or myopic astigmatism and presbyopia
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