An eye examination apparatus that comprises: at least an illuminator (11 12) adapted to project a light beam (1) on an optical illumination path (1A) along a first optical axis (O1) to illuminate the retina (101) of an eye (100) said illuminator comprising at least a light source (111 121 125) and at least a projection diaphragm (114 124) adapted to shape the light beam (1) during the operation of said examination apparatus said projection diaphragm being optically conjugated with the retina acquisition means (27) adapted to receive light (2) reflected by the retina and to acquire images of the retina scanning means (17) adapted to move the light beam (1) projected on the surface of the retina along a scanning direction separation means (16) of the beams adapted to separate the light (1) projected by said illuminator from the light (2) reflected by the retina The projection diaphragm comprises at least a projection opening (1140 1240) having an elongated shape and variable width said projection opening comprising at least a portion having a width larger than the width of said projection opening at the first optical axis (O1).