Ophthalmic devices are provided having a violet-light vertical cut-off filter abruptly absorbs light between the wave lengths of between approximately and 400 nm and 450 nm such that a curve when plotted as percent transmission versus wavelength has the shape as depicted in FIG. The ionizer comprises a bar and a plurality of pin sets. The circular accelerator produces stable closed electron orbits in respective regions with respective widths in the radial direction of the accelerator. A communication unit communicates with the climate control subsystem and transmits a feedback signal when the subsystem meets a predetermined condition.