In this paper, the interests for microscopy of high-resolution wavefront sensing by QWLSI havebeen demonstrated : a lateral resolution up to the microscope diffraction limit with 300£400images, a huge OPD sensitivity of less than 1nm and the implementation simplicity. Indeed, thistechnique does not require temporally coherent illumination, so it can be used with conventionalmicroscope sources, such as halogen lamps. Furthermore, since the interferogram formationdoes not depend on the wavelength, broadband sources are suitable for illumination. Therefore,no modification is needed to use QWLSI on a conventional bright-field microscope. Moreover,this makes it not only compatible but also complementary with other imaging techniques suchas fluorescence or non-linear techniques.