Clinical Ophthalmology (Aug 2022)

Outcomes of a Refractive Segmented Bifocal Intraocular Lens with a Lower Near Addition

  • Venter JA,
  • Collins BM,
  • Hannan SJ,
  • Teenan D,
  • Schallhorn JM

Journal volume & issue
Vol. Volume 16
pp. 2531 – 2543

Abstract

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Jan A Venter,1,2 Barrie M Collins,1 Stephen J Hannan,1 David Teenan,1 Julie M Schallhorn3,4 1Optical Express, Glasgow, UK; 2Eye and Laser Institute, Port Elizabeth, South Africa; 3University of California, San Francisco, Department of Ophthalmology, San Francisco, CA, USA; 4F.I. Proctor Foundation, University of California, San Francisco, CA, USACorrespondence: Jan A Venter, Eye and Laser Institute, 205 Cape Road, Newton Park, Port Elizabeth, South Africa, Tel +44 7713 480975, Email [email protected]: To evaluate clinical and subjective outcomes of a segmented bifocal IOL with a 2.0 D near addition.Patients and Methods: Retrospective analyses of patients who had undergone refractive lens exchange with bilateral implantation of the SBL-2 IOL (Lenstec, Inc., Christ Church, Barbados) were performed. The number of patients included in the study was 389 (778 eyes). Refractive, visual and patient-reported outcomes were presented for the last available visit (mean follow-up 2.05 ± 1.33 months).Results: The percentage of eyes within ± 0.50D and ± 1.00D of emmetropia was 82.5% (642/778) and 97.8% (761/778), respectively. The mean uncorrected intermediate visual acuity (66 cm) of the last available visit was 0.08 ± 0.15 logMAR monocularly and 0.04 ± 0.14 logMAR binocularly. The mean monocular and binocular uncorrected near visual acuity (40 cm) were 0.30 ± 0.15 logMAR and 0.24 ± 0.14 logMAR, respectively. Of all patients, 97.2% (378/389) claimed never to use any correction for distance vision, while 93.1% (362/389) of patients did not require any correction for near vision. The mean scores for visual phenomena (on the scale from 1 – no difficulty to 7 – severe difficulty) were 1.8 ± 1.3, 1.7 ± 1.2, 1.7 ± 1.2 and 1.6 ± 1.2 for glare, halo, starburst, and ghosting/double vision, respectively.Conclusion: Despite the lower near addition of SBL-2 segmented bifocal IOL, patients achieved reasonable rates of spectacle independence and a low incidence of visual phenomena.Keywords: segmented bifocal intraocular lenses, low near addition intraocular lenses, presbyopia, refractive lens exchange

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