AcuFocus IC-8 intraocular lens for myopic patients with cataract: a retrospective study
Keywords:Cataract, Lens implantation, intraocular, Myopia, Visual acuity
Purpose: To retrospectively review visual outcomes of patients with myopia who were implanted with the IC-8 intraocular lens in the nondominant eye and a monofocal intraocular lens in the dominant eye at a private ophthalmology clinic in Australia.
Methods: We retrospectively reviewed medical records of consecutive patients aged ≥18 years who had myopia (≥-0.25 diopter) in both eyes and astigmatism (≤-2.50 diopters) in the nondominant eye and underwent bilateral cataract surgery and implantation of the IC-8 intraocular lens in the nondominant eye and a monofocal intraocular lens in the dominant eye between January 2018 and February 2020 at a private ophthalmology clinic in Australia. At 6 months, uncorrected monocular and binocular distance, intermediate, and near visual acuity was assessed. Dysphotopsia symptoms was evaluated with the Quality of Vision questionnaire.
Results: Medical records of 15 men and 10 women aged 28 to 79 (mean, 60.8±11.5) years of Chinese (n=16), Caucasians (n=8), and South Asian (n=1) ethnicity were reviewed. The mean spherical equivalent improved from -2.92 to -1.20 diopters in nondominant eyes and from -2.42 to -0.13 diopters in dominant eyes. Binocularly, 92%, 64%, and 100% of patients achieved uncorrected distance, intermediate, and near visual acuity of logMAR 0 or better, logMAR 0 or better, and logMAR 0.20 (N5) or better, respectively. The mean Quality of Vision questionnaire score was 32.1 for frequency, 25.4 for severity, and 23.9 for bothersomeness of dysphotopsia symptoms. The rate of laser capsulotomy was higher in eyes with the IC-8 intraocular lens than eyes with the monofocal intraocular lens (72% vs 48%, p=0.08).
Conclusions: The IC-8 intraocular lens can extend the depth of focus and is a good option for patients with myopia. It provides good binocular uncorrected distance, intermediate, and near visual acuity when used in conjunction with a monofocal intraocular lens in the dominant eye. Some patients may have dysphotopsia symptoms, but the symptoms are not frequent, severe, or bothering.
Roberts TV, Lawless M, Chan CC, et al. Femtosecond laser cataract surgery: technology and clinical practice. Clin Exp Ophthalmol 2013;41:180-6.
Abell RG, Kerr NM, Vote BJ. Toward zero effective phacoemulsification time using femtosecond laser pretreatment. Ophthalmology 2013;120:942-8.
Dexl AK, Jell G, Strohmaier C, et al. Long-term outcomes after monocular corneal inlay implantation for the surgical compensation of presbyopia. J Cataract Refract Surg 2015;41:566-75.
Dick HB, Piovella M, Vukich J, Vilupuru S, Lin L; Clinical Investigators. Prospective multicenter trial of a small-aperture intraocular lens in cataract surgery. J Cataract Refract Surg 2017;43:956-68.
Hooshmand J, Allen P, Huynh T, et al. Small aperture IC-8 intraocular lens in cataract patients: achieving extended depth of focus through small aperture optics. Eye (Lond) 2019;33:1096-103.
Agarwal S, Thornell EM. Cataract surgery with a small-aperture intraocular lens after previous corneal refractive surgery: visual outcomes and spectacle independence. J Cataract Refract Surg 2018;44:1150-4.
Shajari M, Mackert MJ, Langer J, et al. Safety and efficacy of a small-aperture capsular bag-fixated intraocular lens in eyes with severe corneal irregularities. J Cataract Refract Surg 2020;46:188-92.
Sánchez-González JM , Sánchez-González MC , De-Hita-Cantalejo C, Ballesteros-Sánchez A. Small aperture IC-8 extended-depth-of-focus intraocular lens in cataract surgery: a systematic review. J Clin Med 2022;11:4654.
McAlinden C, Pesudovus K, Moore JE. The development of an instrument to measure quality of vision: the Quality of Vision (QoV) questionnaire. Invest Ophthalmol Vis Sci 2010;51:5537-45.
Hayashi K, Yoshida M, Manabe S, Hayashi H. Optimal amount of anisometropia for pseudophakic monovision. J Refract Surg 2011;27:332-8.
Finkelman YM, Ng JQ, Barrett GD. Patient satisfaction and visual function after pseudophakic monovision. J Cataract Refract Surg 2009;35:998-1002.
Dick HB, Elling M, Schultz T. Binocular and monocular implantation of small-aperture intraocular lenses in cataract surgery. J Refract Surg 2018;34:629-31.
Ang RE, Picache GCS, Rivera MCR, Lopez LRL, Cruz EM. A comparative evaluation of visual, refractive, and patient-reported outcomes of three extended depth of focus (EDOF) intraocular lenses. Clin Ophthalmol 2020;14:2339-51.
Maurino V, Allan BD, Rubin GS, et al. Quality of vision after bilateral multifocal intraocular lens implantation: a randomized trial—AT LISA 809M versus AcrySof ReSTOR SN6AD1. Ophthalmology 2015;122:700-10.
Ribeiro FJ, Ferreira TB. Comparison of visual and refractive outcomes of 2 trifocal intraocular lenses. J Cataract Refract Surg 2020;46:694-9.
Monaco G, Gari, Di Censo F, Poscia A, Ruggi G, Scialdone A. Visual performance after bilateral implantation of 2 new presbyopia-correcting intraocular lenses: trifocal versus extended range of vision. J Cataract Refract Surg 2017;43:737-47.
Auffarth GU, Brezin A, Caporossi A, et al. Comparison of Nd:YAG capsulotomy rates following phacoemulsification with implantation of PMMA, silicone, acrylic intra-ocular lenses in four European countries. Ophthalmic Epidemiol 2004;11:319-29.
How to Cite
Copyright (c) 2023 Hong Kong Journal of Ophthalmology
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The Journal has a fully Open Access policy and publishes all articles under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. For any use other than that permitted by this license, written permission must be obtained from the Journal.