  The analytic expression proposed by Lifshitz-Slyozov and Wagner (LSW theory)
for the linear variation of the cube average radius (R3) of an emulsion as
function of time (t) is commonly used to appraise the effect of Ostwald
ripening. However, we proved here both experimentally and theoretically that
such approach is incorrect in those cases in which the coalescence of the drops
cannot be prevented. In this event, the expression of LSW should be corrected
in order to account for the actual average radius of the emulsion at each time,
and instead of the radius predicted by the equations of LSW without
consideration of the coalescence process.
