Doing Spin Physics with Unpolarized Particles.

Twisted, or vortex, particles refer to freely propagating non-plane-wave states with helicoidal wave fronts. In this state, the particle possesses a nonzero orbital angular momentum with respect to its average propagation direction. Twisted photons and electrons have been experimentally demonstrated, and creation of other particles in twisted states can be anticipated.

[Comparative analysis of retinotomographic and histological examinations of retina in health and primary open-angle glaucoma].

Comparative analysis of retinal structure was performed in patients with POAG and control healthy group using spectral OCT and histology. An apparent similarity of tomographic and histological patterns of retinal changes was found in patients with POAG. These results make OCT potentially appropriate method for vital examination of retinal structure in glaucomatous eyes including early stages of the disease.

[Minimal compression-load ophthalmoplethysmography in health and in primary open-angle glaucoma].

The investigation was undertaken to study intraocular blood flow in health and in primary open-angle glaucoma, by applying ophthalmoplethysmography with the minimum compression load on the eyeball. Sixty-nine patients (129 eyes) with primary open-angle glaucoma and 41 healthy individuals (82 eyes) were examined. In healthy individuals, the ophthalmoplethysmographic parameters of ocular volumetric blood flow averaged 7.