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Bimanual femtosecond laser-assisted cataract surgery compared to standard bimanual phacoemulsification: A
Gian Maria Cavallini1, Elisa Fornasari1, Michele De Maria2
1Institute of Ophthalmology, University of Modena and Reggio Emilia, Modena, Italy.
Purpose:
To evaluate the efficacy and safety of bimanual, low-energy femtosecond laser-assisted cataract surgery with 1.4-mm microincisions compared to standard bimanual phacoemulsification (bimanual microincision cataract surgery).
Design:
Prospective, non-randomized comparative case series.
Methods:
Bimanual femtosecond laser-assisted cataract surgery with microincisions was performed on 80 eyes (Group A) with the low-energy Ziemer LDV Z8; a matched case-control series of 80 eyes performed with standard bimanual microincision cataract surgery technique was selected for comparison (Group B). All interventions were performed by the same experienced surgeon. Intraoperative parameters were recorded as well as intra- and postoperative complications. Best corrected visual acuity, surgically induced astigmatism, central corneal thickness and endothelial cell count were evaluated before surgery and at 1 and 3 months post intervention.
Results:
The mean effective phaco times were 3.79 ± 2.19 s (Group A) and 4.49 ± 1.84 s (Group B) (p = 0.041). No major intra- or postoperative complications occurred. An overall significant mean best corrected visual acuity improvement was noted at 3 months, but was not statistically different between the groups. No significant changes were observed for surgically induced astigmatism or corneal pachymetry. A significant loss of endothelial cell count in both groups was detected at 3 months, with Group A reporting a significantly lower endothelial cell count loss compared to Group B (p = 0.009).
Conclusion:
Bimanual, low-energy femtosecond laser-assisted cataract surgery with 1.4-mm microincisions by an expert surgeon was proven to be safe and effective in this study. This technique has advantages compared with standard bimanual microincision cataract surgery in terms of endothelial preservation.
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