Resumen

VALBON, Bruno de Freitas et al. Correlations between densitometry of the lens by Scheimplufg imaging, time factor and energy (power US) in phacoemulsification. Rev. bras.oftalmol. [online]. 2011, vol.70, n.3, pp. 147-150. ISSN 0034-7280.  http://dx.doi.org/10.1590/S0034-72802011000300003.

PURPOSE: To evaluate and to correlate the PNS (patient nuclear score) and time and energy (power US) in patients priorto and following phacoemulsification with intraocular lens implantation. METHODS: This is a prospective study. Twenty two consecutive patients (22 eyes) that underwent phacoemulsification surgery and intraocular lens implantation were enrolled. Full ophthalmologic clinical assessment including Pentacam (Oculus, Pentacam) measurements were performed in all cases prior to surgery (Pre). Excluison criteria were corneal disease or scars. RESULTS: There are statistically significant difference between PNS and Time with p < 0,0050 and PNS x Energy with p < 0,0029. CONCLUSION: Preoperatively adjusting phaco parameters based on cataract grade helped improve overall efficiency by reducing the amount of energy and fluid used in the eye and reducing overall phaco time.

Palabras llave : Densitometry; Phacoemulsification [methods]; Diagnostic imaging [methods]; Time factor.