Picosecond Laser Treatment for Tattoos and Benign Cutaneous Pigmented Lesions (Secondary publication).

Background And Aims: The selective removal of tattoos and benign cutaneous pigmented lesions with laser energy evolved rapidly with the development of the nanosecond-domain Q-switched laser (ns-laser). Recently, however, a series of picosecond-domain lasers (ps-lasers) with pulsewidths less than 1 ns has become commercially available, enabling more efficient and faster removal of pigmented lesions in the field of dermatologic laser surgery.

Rationale Behind The Ps-laser: The efficacy of the ns-laser depended on the theory of selective photothermolysis, whereby an extremely short pulse width was delivered less than the thermal relaxation time (TRT) of a target.

Eyelash reconstruction with strip composite eyebrow graft.

Eyelash hairs have certain unique properties such as parallel direction, limited length, and tapering, which makes eyelash reconstruction considerably difficult. Several methods for eyelash reconstruction have been reported. Among them, strip composite eyebrow graft is the most suitable because the properties of eyebrow hairs are very similar to those of the original eyelash hairs.

An analysis of 114 patients with dermal melanocytosis on the trunk and extremities.

Dermal melanocytosis is commonly treated with Q-switched neodymium:yttrium-aluminium-garnet (Nd:YAG) laser today. We report on the clinical effect of laser treatment of dermal melanocytosis of the trunk and extremities in 114 patients. The effect of numbers of such treatment was assessed by clinical examination and classified into six grades.