Comparison between clinical results of two diffractive multifocal lenses with the same platform but different additions



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Poyales Galán, Francisco and Garzón Jiménez, Nuria and Caro, Pedro and Jáñez, Oscar and Soler, Fernando and Díaz, Valentín (2015) Comparison between clinical results of two diffractive multifocal lenses with the same platform but different additions. Journal of Emmetropia, 6 (2). pp. 65-71. ISSN 2171-4703

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PURPOSE: To evaluate visual results with two multifocal diffractive lenses designed with the same platform but with different additions.
SETTING: Grupo Innova Ocular clinics.
METHODS: A total of 50 eyes from 50 patients were included. Group 1 (n = 25) was implanted with the TECNIS® 1 ZLB +3.25 and group 2 (n = 25) with the TECNIS® 1 ZKB +2.75. Patients were assessed at 24 hours, 1 week and 1 month postoperatively. At surgical discharge, corrected (CDVA) and uncorrected distance visual acuity (UCDVA), near visual acuity (VA) at 25, 40 and 80 cm, visual quality and the defocus curve were measured.
RESULTS: Changes in sphere and spherical equivalent were statistically significant (p<0.01) in both groups at 1 week and 1 month compared to preoperative values. In group 1, UCDVA logMAR at 1 month was 0.06 ± 0.02. In group 2, UCDVA at 1 month was 0.03 ± 0.03. In near vision, the TECNIS® 1 ZLB group obtained a VA logMAR of 0.35 ± 0.02 at 25 cm, 0.13 ± 0.02 at 40 cm and 0.27 ± 0.02 at 80 cm, while in the TECNIS® 1 ZKB group, the values were 0.38  ± 0.03, 0.14 ± 0.03 and 0.23 ± 0.06, respectively. No statistically significant differences were found either when results for
visual quality were compared.
CONCLUSION: Both the TECNIS® 1 ZLB and TECNIS® 1 ZKB are excellent options for obtaining good distance and near vision, in addition to providing good intermediate vision, especially at distances such as those required for working with computers.

Item Type:Article
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En abierto en la web del editor.
Submitted 3/3/2015 ; Revised 6/2/2015 ; Accepted 6/9/2015.

Uncontrolled Keywords:Multifocal lenses ; difractive lenses ; Design lenses ; TECNIS
Subjects:Medical sciences > Optics > Contact lenses
Medical sciences > Optics > Optometry
Medical sciences > Optics > Optical materials
ID Code:36924
Deposited On:13 May 2016 10:35
Last Modified:30 Jan 2019 12:01

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