ABSTRACT
Objective: To retrospectively evaluate the efficacy of an Alexandrite picosecond laser versus Nd:YAG nanosecond laser for removing blue–black eyeliner tattoos which have existed more than 10 years.
Methods: A total of 40 patients were treated with an Alexandrite picosecond laser in our department from August 2015 to July 2017, with a fluence of 1.96–6.37J/cm2, spot size of 2.0–3.6 mm, and pulse width of 750 ps. Another 32 patients were treated with an Nd:YAG nanosecond laser, with a fluence of 2.80–7.00 J/cm2, spot size of 3 mm, and pulse width of 5–20 ns. All analysed patients completed at least one treatment and follow-up.
Results: The median number of treatment for all the patients was 1 (range, 1–4). After a single session, no difference was found between the two lasers for the eyeliner removal (p > 0.05). For the people who achieved an excellent response of tattoo clearance, there was still no difference between the two groups (p > 0.05). Transient side effects were observed in two groups, but neither group had significant adverse reactions.
Conclusions: To treat blue–black Chinese eyeliner tattoos over 10 years, Alexandrite picosecond laser does not provide better clearance than the Nd:YAG nanosecond laser.
Acknowledgements
This work was supported by CAMS Innovation Fund for Medical Sciences (CIFMS-2017-I2M-1-017), PUMC Youth Fund and Fundamental Research Funds for the Central Universities (3332015115).
Declaration of interest
The authors have no conflicts of interest to declare.