Results of a clinical evaluation of a trifocal intraocular lens in Japan

Hiroko Bissen-Miyajima, Yuka Ota, Ken Hayashi, Chizuka Igarashi, Noriyuki Sasaki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Purpose: To evaluate the effectiveness and safety of a new trifocal intraocular lens (IOL) after cataract removal in patients living in Japan. Study design: Prospective multicenter clinical study. Methods: One hundred and thirty-five eyes of 68 patients (19 men, 49 women; mean age, 66.3 ± 7.4 years) were followed for 6 months. Trifocal IOLs with focal points at near, intermediate, and distance were implanted bilaterally in eyes with less than 1 diopter of corneal astigmatism. The visual acuity (VA) at distance, 60 and 40 centimeters (cm), and contrast sensitivities were measured. Patients completed quality-of-life questionnaires preoperatively and postoperatively. Results: The mean bilateral logarithm of the minimum angle of resolution VA at 5 meters (m), 60 cm, and 40 cm were, respectively: uncorrected, − 0.104 ± 0.095, − 0.065 ± 0.111, and − 0.042 ± 0.105; and distance-corrected, − 0.197 ± 0.076, − 0.112 ± 0.111, and − 0.073 ± 0.111. The contrast sensitivities at distance and near were within the normal range at all spatial frequencies under photopic conditions. Patients reported complete spectacle independence in 75.0% of cases. Total use of spectacles was reported by 1.5% and partial by 20.6%; the purpose of spectacle use was primarily for near visual tasks. Mild-to-moderate glare was reported by 65.7% of patients and halos by 70.1%; only 1.5% of subjects reported severe glare and halos. Conclusions: This new trifocal IOL provides equally good uncorrected VAs at distance, intermediate, and near, and decreases spectacle dependence in daily life. Patients frequently report mild-to-moderate glare and halos, and patients should be informed about these before implantation.

Original languageEnglish
Pages (from-to)140-149
Number of pages10
JournalJapanese Journal of Ophthalmology
Volume64
Issue number2
DOIs
Publication statusPublished - 2020 Mar 1
Externally publishedYes

Keywords

  • Cataract
  • Contrast sensitivity
  • Spectacle use
  • Trifocal IOL
  • Visual acuity

ASJC Scopus subject areas

  • Ophthalmology

Fingerprint Dive into the research topics of 'Results of a clinical evaluation of a trifocal intraocular lens in Japan'. Together they form a unique fingerprint.

  • Cite this

    Bissen-Miyajima, H., Ota, Y., Hayashi, K., Igarashi, C., & Sasaki, N. (2020). Results of a clinical evaluation of a trifocal intraocular lens in Japan. Japanese Journal of Ophthalmology, 64(2), 140-149. https://doi.org/10.1007/s10384-019-00712-4