Variations in retinal nerve fiber layer measurements on optical coherence tomography after implantation of trifocal intraocular lens



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García Bella, Javier and Martínez de la Casa, Jose Maria and Talavero González, Paula and Fernández Vigo, José Ignacio and Valcarce Rial, Laura and García Feijoo, Julián (2018) Variations in retinal nerve fiber layer measurements on optical coherence tomography after implantation of trifocal intraocular lens. European Journal of Ophthalmology, 28 (1). pp. 32-35. ISSN 1120-6721

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Purpose: To establish the changes produced after implantation of a trifocal intraocular lens (IOL) on retinal nerve fiber layer measurements performed with Fourier-domain optical coherence tomography (OCT).
Methods: This prospective study included 100 eyes of 50 patients with bilateral cataract in surgical range, no other associated ocular involvement, refractive errors between +5 and −5 spherical diopters, and less than 1.5 D of corneal astigmatism. The eyes were operated by phacoemulsification with implantation of 2 different trifocal IOLs (FineVision and AT LISA tri 839MP) in randomized equal groups. Cirrus OCT and Spectralis OCT were performed before surgery and 3 months later. Both analyzed the thickness of the nerve fiber layer and thickness divided by quadrants (6 in case of Spectralis and 4 in case of Cirrus HD).
Results: The mean age of patients was 67.5 ± 5.8 years. The global nerve fiber layer thickness measured with Spectralis OCT was 96.77 μm before surgery and 99.55 μm after. With Cirrus OCT, the global thickness was 85.29 μm before surgery and 89.77 μm after. Statistically significant differences in global thickness measurements between preimplantation and postimplantation of the IOL were found with both OCT in the 2 groups. Statistically significant differences were also found in temporal and superior quadrants.
Conclusions: The implantation of a diffractive trifocal IOL alters the results of the optic nerve fiber layer on Fourier-domain OCT in these patients, which should be taken into account in the posterior study of these patients.

Item Type:Article
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Article first published online: April 9, 2017; Issue published: January 1, 2018
Received: August 02, 2017; Accepted: September 05, 2017

Uncontrolled Keywords:Intraocular lens, Optical coherence tomography, Retinal nerve fiber layer, Trifocal
Subjects:Medical sciences > Medicine > Ophtalmology
Medical sciences > Optics > Visual perception
Medical sciences > Optics > Imaging systems
ID Code:47388
Deposited On:04 May 2018 10:11
Last Modified:04 May 2018 10:11

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