Visual outcomes after bilateral trifocal diffractive intraocular lens implantation



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Carballo Álvarez, Jesús and Vázquez Molini, José María and Sanz Fernández, Juan Carlos and García Bella, Javier and Polo Llorens, Vicente and García Feijoo, Julián and Martinez de la Casa, Jose Maria (2015) Visual outcomes after bilateral trifocal diffractive intraocular lens implantation. BMC Ophthalmology, 15 (26). ISSN 1471-2415

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In recent years new models of intraocular lenses are appearing on the market to reduce requirements for additional optical correction. The purpose of this study is to assess visual outcomes following bilateral cataract surgery and the implant of a FineVision® trifocal intraocular lens (IOL).
Prospective, nonrandomized, observational study. Vision was assessed in 44 eyes of 22 patients (mean age 68.4 ± 5.5 years) before and 3 months after surgery. Aberrations were determined using the Topcon KR-1 W wave-front analyzer. LogMAR visual acuity was measured at distance (corrected distance visual acuity, CDVA 4 m), intermediate (distance corrected intermediate visual acuity, DCIVA 60 cm) and near (distance corrected near visual acuity, DCNVA 40 cm). The Pelli-Robson letter chart and the CSV-1000 test were used to estimate contrast sensitivity (CS). Defocus curve testing was performed in photopic and mesopic conditions. Adverse photic phenomena were assessed using the Halo v1.0 program.
Mean aberration values for a mesopic pupil diameter were: total HOA RMS: 0.41 ± 0.30 μm, coma: 0.32 ± 0.22 μm and spherical aberration: 0.21 ± 0.20 μm. Binocular logMAR measurements were: CDVA −0.05 ± 0.05, DCIVA 0.15 ± 0.10, and DCNVA 0.06 ± 0.10. Mean Pelli-Robson CS was 1.40 ± 0.14 log units. Mean CSV100 CS for the 4 frequencies examined (A: 3 cycles/degree (cpd), B: 6 cpd, C: 12 cpd, D: 18 cpd) were 1.64 ± 0.14, 1.77 ± 0.18, 1.44 ± 0.24 and 0.98 ± 0.24 log units, respectively. Significant differences were observed in defocus curves for photopic and mesopic conditions (p < 0.0001). A mean disturbance index of 0.28 ± 0.22 was obtained.
Bilateral FineVision IOL implant achieved a full range of adequate vision, satisfactory contrast sensitivity, and a lack of significant adverse photic phenomena.
Trial registration
Eudract Clinical Trials Registry Number: 2014-003266-2.

Item Type:Article
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Revista en O.A. en la web del editor.
Received: 6 July 2014Accepted: 20 February 2015Published: 14 March 2015

Uncontrolled Keywords:Cataract surgery; Multifocal; Trifocal; Intraocular lens; Contrast sensitivity
Subjects:Medical sciences > Medicine > Surgery
Medical sciences > Medicine > Ophtalmology
Medical sciences > Optics > Visual perception
ID Code:40607
Deposited On:19 Dec 2016 09:15
Last Modified:19 Dec 2016 09:15

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