Pupil versus 1 st Purkinje capsulotomy centration with femtosecond
laser: long term outcomes with a sinusoidal trifocal lens
Abstract
Purpose: To assess the role of femtosecond laser-assisted capsulotomy
centration in the long-term intraocular positioning of a multifocal
intraocular lens. Design: Prospective comparative study. Methods: A
total of 60 eyes of 30 patients underwent femtosecond laser–assisted
Refractive Lens Exchange (RLE). For every patient, capsulotomy
centration was randomly performed according to pupil centre (PC) in one
eye and first Purkinje reflex (FPR) in the other. The intraocular lens
(IOL) positioning, visual acuities, spherical equivalent, internal
aberrometry and quality of vision were assessed and compared at 3 years’
follow-up between groups (PC and FPR). Results: Intraocular lens
positioning showed a statistically significant difference between
groups, with a closer centration to the visual axis in the FPR patients
(p=<0.001). Internal aberrometry showed higher values in the
PC capsulotomy centration group (p<0.01). Conclusions: First
Purkinje reflex (FPR) centered capsulotomy is associated to a closer
centration of the IOL to the visual axis.