SciELO - Scientific Electronic Library Online

 
vol.78 número12Diagnóstico del queratocono subclínico por topografía de elevaciónValoración de enfermedades inflamatorias coriorretinianas con angiografía verde indocianina índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Archivos de la Sociedad Española de Oftalmología

versión impresa ISSN 0365-6691

Resumen

LLEO PEREZ, A et al. Comparative clinical study of visual results between two different types of bifocal intraocular lenses. Arch Soc Esp Oftalmol [online]. 2003, vol.78, n.12, pp.665-673. ISSN 0365-6691.

Purpose: To compare visual results after cataract surgery in patients who underwent bilateral implantation of two different types of bifocal intraocular lenses: the model 811E (Pharmacia), and the model MF4 (Ioltech). Methods: This prospective study comprised 99 patients who underwent phacoemulsification with bifocal IOL implantation. The model 811E was implanted in forty-seven eyes of 47 patients (group I) and the model MF4 in fifty-two eyes of 52 patients (group II). Visual acuity (distance and near), complications, and adverse events were measured. The postoperative follow-up in all patients was of 6 months. Patient satisfaction was also valued using a questionnaire. Results: There was no significant difference in uncorrected distance visual acuity between both groups, which was respectively 0.63 (S.D.: 0.2) for group I and 0.58 (S.D.: 0.16) for group II (p=0.17). Nonetheless a significant difference was found when measuring corrected distance visual acuity, which was 0.86 (S.D.: 0.1) for group I and 0.77 (S.D.: 0.12) for group II (p=0.01). Mean uncorrected near visual acuity was statistically better in group I: J2.00 (S.D.:1.16) in comparison with J2.48 (S.D.:0.83) for group II (p=0.021). Subjectively, both groups indicated high levels of satisfaction, without significant difference between them, being respectively 78% (group I) and 73.4% (group II). Conclusions: Our results reveal a superiority of the bifocal diffractive lens over the refractive bifocal lens for corrected distance visual acuity and distance-corrected near visual acuity. Postoperatory complications and satisfaction degree were similar for both IOL models.

Palabras clave : Cataract surgery; bifocal IOL; visual acuity.

        · resumen en Español     · texto en Español

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons