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Updated: Jun 13, 2026
Implantation Protocol of the Foldable Capsular Vitreous Body for Complex Vitreoretinal Surgery
Published on: April 14, 2026
Two-year follow-up after implantation of diffractive aspheric silicone multifocal intraocular lenses
Mami Yoshino1, Hiroko Bissen-Miyajima, Shinichi Oki
1Department of Ophthalmology, Tokyo Dental College Suidobashi Hospital, Tokyo, Japan. mamiyoshino@tdc.ac.jp
Purpose:
To evaluate the stability of visual performance after implantation of a diffractive aspheric silicone multifocal intraocular lens (MIOL).
Methods:
Thirty eyes of 15 patients received the Tecnis MIOL ZM900 (Abbot Medical Optics) after cataract extraction at Tokyo Dental College Suidobashi Hospital. The uncorrected and best-corrected distance visual acuities (UCDVA, BCDVA); uncorrected, distance-corrected and best-corrected near VAs (UCNVA, DCNVA and BCNVA); spherical equivalent refraction, spectacle independence, contrast sensitivity and posterior capsule opacification (PCO) were measured at 1 week; 1, 3 and 6 months; and 1 and 2 years postoperatively.
Results:
Two years postoperatively, the UCDVA was 0.01 logMAR, BCDVA -0.09 logMAR, UCNVA 0.19 logMAR, DCNVA 0.1 logMAR and BCNVA 0.04 logMAR. There was no significant change from 1 week through 2 years. The percent of spherical equivalent refraction error within ± 0.5 diopter was 63.4% at 2 years. No patient required spectacles for reading; two patients have used spectacles for intermediate vision when necessary. One eye underwent Nd:YAG laser posterior capsulotomy because of PCO.
Conclusion:
The visual performance after implantation of the Tecnis MIOL was stable for 2 years. A low rate of PCO contributed to the long-term visual performance.
