Long-term safety of posterior chamber implantable phakic contact lens for the correction of myopia

Gitansha Sachdev, Dandapani Ramamurthy, Gitansha Sachdev, Dandapani Ramamurthy

Abstract

Purpose: To review the safety of the implantable phakic contact lens (IPCL V1, Caregroup Sight Solutions, India) for correction of myopia and myopic astigmatism.

Methods: Retrospective interventional case series including 134 eyes which underwent IPCL implantation for correction of myopia and myopic astigmatism at a tertiary eye care hospital in South India. Intraoperative and postoperative complications were analyzed. The following parameters were analyzed at preoperative and 1, 6 and 12 month postoperative visits: visual acuity (in logMAR) and manifest refraction, slit lamp bio microscopy, dilated fundus examination, IOP and endothelial cell density measurement.

Results: No intraoperative complications were noted. Cataract was the most common postoperative complication, wherein three eyes (2.2%) underwent observation for visually insignificant anterior subcapsular cataract and one eye (0.7%) required surgical intervention. Four eyes developed transient increased IOP due to steroid response (3 eyes) and pupillary block glaucoma (1 eye). The endothelial cell loss noted over a 1-year follow-up was 2.01%±4.12% (P=0.71). One eye developed hypopyon on the third postoperative day, which resolved subsequently with an unaided vision of 20/20. No vision threatening complications were noted. The mean follow-up in the cohort was 25.66±16.45 months.

Conclusion: The IPCL is a safe and effective treatment modality for correction of myopia and myopic astigmatism.

Keywords: ICL; IPCL; implantable collamer lens; implantable phakic contact lens; myopia; myopic astigmatism; phakic intraocular lens; refractive correction.

Conflict of interest statement

Disclosure The authors report no conflicts of interest in this work.

Figures

Figure 1
Figure 1
Refractive outcomes following IPCL implantation. Notes: (A) UDVA. (B) UDVA vs CDVA. (C) Change in CDVA. (D) Spherical equivalent refraction attempted vs achieved. (E) Spherical equivalent refraction accuracy. (F) Spherical equivalent refraction stability. (G) Refractive astigmatism. Abbreviations: CDVA, corrected distance visual acuity; IPCL, implantable phakic contact lens; preop, preoperative; postop, postoperative; SEQ, spherical equivalent; UDVA, uncorrected distance visual acuity.

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