Abstract

Purpose
The aim of this study was to evaluate the clinical results of multifocal intraocular lenses in patients who underwent corneal refractive surgery.
Methods
Thirty eyes (16 patients; Synergy: ZFR00V) were retrospectively enrolled. Uncorrected and corrected near visual acuity (UNVA, CNVA), intermediate visual acuity (UIVA, CIVA), and distant visual acuity (UDVA, CDVA), manifest refraction spherical equivalent (MRSE), and satisfaction score were assessed before and after surgery.
Results
The postoperative UDVA, UIVA, UNVA, and MRSE of the three groups exhibited improvements compared to the preoperative data (P<0.05). The error between the postoperative refraction and the intraocular lens calculation was smaller with the Barrett True K formula than with the Haigis-L formula (P<0.05). The defocus curve at 0 diopter (D) increased, from –1 to –1.5 D, and from –2.5 to –4.0 D, indicating improved vision at distant, intermediate, and near distances. Distance satisfaction (1.47±0.82), near satisfaction (1.25±0.71), and overall satisfaction (1.36±0.42) were good, but light scattering and halo satisfaction (1.97±0.81) yielded a poor result.
Conclusion
In patients with cataracts who underwent corneal refractive surgery, multifocal intraocular lens implantation resulted in excellent uncorrected visual acuity at distant, intermediate, and near distances. However, careful consideration should be given to patient selection due to the incidence of side effects such as glare and halos.

• Keywords: Corneal refractive surgery; Multifocal intraocular lenses; Barrett True K; Defocus curve; Halos