Clinical Outcome of a Quadrifocal (Trifocal) Intraocular Lens in Chinese Patients: A Prospective, Observational Case Series.

PURPOSE: To report the visual outcomes and quality of vision and life after bilateral implantation of a single-piece trifocal intraocular lens in Chinese patients.

SETTING: Hong Kong Sanatorium & Hospital.

DESIGN: Prospective, observational case series.

METHODS: Patients with bilateral implantation of AcrySof IQ PanOptix multifocal intraocular lens (Alcon Laboratories Inc.) were included. Distance, intermediate (60 cm), and near (40 cm) visual acuities (VA) and contrast sensitivity, defocus curve, preoperative higher-order aberration (HOA), dysphotopsia (0-5), satisfaction (1-5), spectacle independence, and quality of life were evaluated. The association between preoperative HOA and postoperative halos was also assessed.

RESULTS: Fifty-four eyes of 27 patients were included. The mean binocular distance, intermediate, and near uncorrected VA was -0.05±0.06 (20/18), 0.06±0.10 (20/23), and 0.04±0.05 (20/22), respectively. No eyes lost more than one line of vision. Binocular contrast sensitivity was comparable to the monocular population norm of older adults. The defocus curve demonstrated that the binocular VA of 20/25 or better was achieved at a power of -3.00 to +0.50 diopter. Mean scores for halos, glare, and starbursts were 2.4±1.4, 0.2±0.8, and 1.4±1.4 (out of 5), respectively. Mean satisfaction score was 4.3±0.7 (out of 5). All the patients (100%) reported total spectacle independence. Mean vision-targeted composite score of the vision-related quality of life questionnaire was 97.2±9.7 (out of 100). Preoperative HOA was not associated with postoperative halos.

CONCLUSIONS: Implantation of the trifocal intraocular lens provided satisfactory visual outcomes and quality of vision and life, which resulted in a high rate of spectacle independence.