Abstract: The disclosure provides a display device for head mounting, in particular a Maxwellian display device, with an enlarged eye-box. The display device includes a light source emitting light beams for forming an image, an optical system for guiding the light beams to a beam forming element. The beam forming element is configured to converge each of multiple sets of the light beams into a different point of convergence, for example on an exit pupil of the display device. Each point of convergence is a convergent viewing point for a user. The eye-box is thus enlarged.

Abstract: Some embodiments are related to a method for determining if a subject has an increased likelihood of high grade dysplasia (HGD) or esophagal adenocarcinoma (EC). An exemplary method can include providing a sample from an AFI patch of the subject's esophagus, assaying the sample for (i) aneuploidy, and (ii) abnormal p53, and (iii) abnormal Cyclin A, wherein if the sample shows the presence of at least two of (i), (ii) and (iii), then the subject is determined as having an increased likelihood of high grade dysplasia (HGD) or esophagal adenocarcinoma (EC). The invention also relates to certain methods of medical treatment.