To evaluate distance, intermediate, and near vision after bilateral implantation of a diffractive aspheric trifocal intraocular lens (IOL).
This study enrolled 204 eyes of 102 patients who had bilateral implantation of the AT LISA tri 839MP IOL. Monocular and binocular uncorrected distance visual acuity (UDVA) and corrected distance visual acuity (CDVA) (4 meters), monocular and binocular uncorrected near visual acuity (UNVA) and distance-corrected near visual acuity (DCNVA) (30, 40 centimeters), binocular uncorrected intermediate visual acuity (UIVA) and distance-corrected intermediate visual acuity (DCIVA) (50, 60, 70 centimeters), the defocus curve, and binocular photopic and mesopic contrast sensitivity with and without glare were evaluated over 6 months.
No statistically significant differences in visual acuity outcomes between follow-up visits were found at any distance evaluated (p>0.05). Six months postoperatively, the mean monocular UDVA and UNVA were comparable to preoperative CDVA and DCNVA, respectively. All patients achieved a binocular CDVA of 20/25 or better. The mean binocular DCIVA ranged from 0.11 ± 0.11 (70 cm) to 0.07 ± 0.11 logMAR (50 cm). The mean binocular DCNVA was 20/25 or better in nearly 87% of patients. The defocus curve showed a wide range of useful vision, with no statistically significant differences in visual acuity at intermediate distances (p = 0.151). Mesopic contrast sensitivity was lower than under photopic conditions, particularly at medium and high spatial frequencies (p<0.001).
Bilateral implantation of this trifocal IOL provides good visual outcomes at far, intermediate, and near distances, being an effective solution to reduce spectacle dependence after lensectomy.
Eur J Ophthalmol 2016; 26(5): 405 - 411
Article Type: ORIGINAL RESEARCH ARTICLE
AuthorsJosé F. Alfonso, Luis Fernández-Vega Cueto, Lurdes Belda-Salmerón, Robert Montés-Micó, Luis Fernández-Vega
- • Accepted on 18/12/2015
- • Available online on 18/01/2016
- • Published in print on 04/08/2016
This article is available as full text PDF.
- Alfonso, José F. [PubMed] [Google Scholar] 1, 2, * Corresponding Author (email@example.com)
- Fernández-Vega Cueto, Luis [PubMed] [Google Scholar] 1
- Belda-Salmerón, Lurdes [PubMed] [Google Scholar] 3
- Montés-Micó, Robert [PubMed] [Google Scholar] 3
- Fernández-Vega, Luis [PubMed] [Google Scholar] 1, 2
Fernández-Vega Ophthalmological Institute, Oviedo - Spain
Surgery Department, School of Medicine, University of Oviedo, Oviedo - Spain
GIO, Optics and Optometry and Vision Sciences Department, Faculty of Physics, University of Valencia, Oviedo - Spain