  About 100 millisecond (ms) pulsars have been identified in the Galaxy, and
only ~10% of them are solitary, i.e. without a binary companion. Nothing is
known on the optical emission properties of millisecond pulsars. Observations
of solitary millisecond pulsars are the only way to detect their faint optical
radiation, otherwise buried by the brighter white dwarf companion. As in the
case of solitary, non millisecond pulsars, an X-ray detection represents the
first step for a follow-up identification campaign in the optical. Among the
X-ray detected millisecond pulsars, PSR J2124-3358 stands out as an ideal case
because it is very close (<270 pc) and little absorbed. Here, we report on
recent VLT observations of the PSR J2124-3358 aimed at the identification of
its optical counterpart. No optical emission from the pulsar has been detected
down to a limiting flux of V ~ 27.8.
