High myopia correction by a new phakic intraocular lens with the double optics – a clinical case

Abstract

Purpose. To report a case of implantation of a new phakic intraocular lens (PIOL) with the double optics, to assess the clinical and functional results of surgical treatment.Material and method. The article presents a 34-year male patient with high myopia in the both eyes. Pre- and postoperative examinations included: visual acuity measurement, bio-microscopy, ophthalmoscopy, test of visual field, tonometry, endothelial microscopy, ultrasound biomicroscopy (UBM) and optical coherence tomography (OCT). The patient had contraindications for laser refractive surgery, therefore a method of double optics PIOL implantation was proposed. The new PIOL model was implanted in both eyes with an i nterval of 1 week.Results. The operations were successful, without complications. At the postoperative examination of the patient, the uncorrected visual acuity (UCVA) of the right eye was 0.8 and in the left eye was 0.6. The influence of PIOL-3 implantation on IOP was not noted. The performed UBM and OCT of the anterior segment of the eye showed that the haptic elements of the new model PIOL-3 were located in the ciliary sulcus, and there was no contact between the PIOL and the native lens.Conclusions. The new phakic intraocular lens with the double optics performed well for the correction of high myopia throughout the 1-year observation period. It is a safe and effective procedure that allows to obtain a high clinical and functional result, the optical central cylinder in the PIOL design makes a precise placement of the PIOL relative to the optical axis in bright light.

Keywords

• myopia
• implantation
• phakic intraocular lens (piol)
• surgical refractive correction