Первый опыт имплантации интраокулярных линз модели RayOne Trifocal

Abstract

Purpose. To study refractive result of the RayOne Trifocal intraocular lens (IOL) implantation (Rayner, UK). Material and methods. 32 patients (32 eyes) were selected for the RayOne Trifocal IOL implantation. All patients underwent standard preoperative ophthalmological examination. The IOL diopters were calculated using ZEISS IOL Master 700 (Carl Zeiss, Germany). In postoperative period, the achievement of target refraction (emmetropia) was assessed using autorefractor keratometry (Tomey Corp., Japan), as well as visometry for distance, at an intermediate distance (70 cm), and for near. Results. In vast majority of cases (22 eyes, 68 %), postoperative spherical equivalent within ±0.5 diopters (target refraction) was obtained; in 9 eyes (28 %) – weak myopic spherical equivalent, in one case – weak hyperopic equivalent. On the 1st day of postoperative period, uncorrected visual acuity for distance in vast majority of cases (22 eyes, 68 %) was 0.8–1.0, in 5 eyes (16 %) it was 0.5–0.7; in 5 eyes – 0.1–0.4 (16 %). The best corrected visual acuity in 12 eyes (38 %) was 0.7–0.8. At a distance of 70 cm, high visual acuity (0.8–1.0) was achieved in 26 eyes (81 %), 0.6 – in 6 eyes (19 %). Visual acuity for near vision without correction for most patients (28 eyes, 87 %) was 0.7–0.8, in 4 eyes (13 %) it corresponded to 0.1–0.4. Conclusion. The RayOne Trifocal diffractive IOL provides high visual acuity at all distances, according to our data, 68% for distance, 81% for intermediate distance, and 87% for near, which is consistent with literature data. Keywords: cataract, multifocal IOL, RayOne Trifocal.