Night vision

About: Night vision is a research topic. Over the lifetime, 6004 publications have been published within this topic receiving 67372 citations.

Improvement in vision: a new goal for treatment of hereditary retinal degenerations

Abstract: Introduction: Inherited retinal degenerations (IRDs) have long been considered untreatable and incurable. Recently, one form of early-onset autosomal recessive IRD, Leber congenital amaurosis (LCA) caused by mutations in RPE65 (retinal pigment epithelium-specific protein 65 kDa) gene, has responded with some improvement of vision to gene augmentation therapy and oral retinoid administration. This early success now requires refinement of such therapeutics to fully realize the impact of these major scientific and clinical advances. Areas covered: Progress toward human therapy for RPE65-LCA is detailed from the understanding of molecular mechanisms to preclinical proof-of-concept research to clinical trials. Unexpected positive and complicating results in the patients receiving treatment are explained. Logical next steps to advance the clinical value of the therapeutics are suggested. Expert opinion: The first molecularly based early-phase therapies for an IRD are remarkably successful in that vision has improved and adverse events are mainly associated with surgical delivery to the subretinal space. Yet, there are features of the gene augmentation therapeutic response, such as slowed kinetics of night vision, lack of foveal cone function improvement and relentlessly progressive retinal degeneration despite therapy, that still require research attention.

Nighttime Driving and Visual Degradation

Abstract: Recent developments which provide new insights into night driving accidents are reviewed. Selective Degradation: The mechanisms subserving steering are different from those underlying hazard recognition and these two modes of processing visual information are selectively impaired at night. Although it is possible to steer a vehicle as well at night as during the day, the ability to recognize and respond to infrequent hazards is seriously degraded. Night Myopia: Many individuals become nearsighted under reduced illumination. The finding that this is a normal consequence of the passive return of the accommodative system to an intermediate resting posdition has led to a procedure to ameliorate this effect. By determining the value of an individual's dark focus it is possible to provide a special night driving prescription which effectively eliminates night myopia.

Monocular mounting for multi-channel panoramic night vision goggle having a hot shoe connector

Abstract: There is disclosed a multi-channel panoramic night vision goggle (PNVG) system having two monocular subassemblies, each having a first channel and a second channel, each channel having an optical axis. A mounting structure, having a right and a left side, and having two angled mounting shoes may be used to mount the monocular subassemblies. The angled mounting shoes permit a single monocular subassembly to be attached to either side of the mounting structure, yet permit an optical axis of one of the first or second channels to be substantially coaxial with a user's optical axis and permits the other of the first and second channels to be at an angle not coaxial or parallel with the user's optical axis. In addition a hot shoe connector enables selective and repeatable attachment of the monocular subassembly to the angled mounting shoe, without the use of solder to complete the electrical contact.

Infrared night vision system, in colour

Abstract: A night vision method and system for producing a colour infrared image of a road scene situated in front of a vehicle. At least one projection device emits an infrared light towards the road scene. A colour sensor captures a colour image of the road scene and a monochrome infrared sensor captures a monochrome infrared image of the road scene. The colour and monochrome infrared images are combined to obtain the colour infrared image of the road scene.