Lack of pain Ischemic optic neuropathy, NMO-associated optic neuritis, LHON ... (vision loss rarely acute) Lack of an afferent pupillary defect Various maculopathies, bilateral optic neuropathy ...

Optic neuritis (ON) is an inflammation that damages ... changes in the way the pupil reacts to bright light photopsia, seeing flashing lights or floaters in one or both eyes Uhthoff’s phenomenon ...

Optic Neuritis: Clinical Features Optic neuritis refers to inflammation of the optic nerve. The term may be used broadly in reference to many causes of optic nerve inflammation including systemic ...

Russia is using fiber-optic drones to gain an advantage in the Ukraine war. These drones are harder to detect and jam than traditional drones. Ukrainian forces are adapting their tactics to ...

The affected cars are Kona N (OS) and i30 Sedan N (CN7) models, made between 2020 and 2023. The defect is in the fuel control valve of these models. “If this occurs, the engine could stall ...

A drone controlled via a fiber-optic cable is seen during a test flight on December in Kyiv Oblast, Ukraine. On the Chinese ecommerce giant Alibaba’s online shopping platform, with a couple of ...

Fiber optic drones capable of penetrating 20 kilometers (12.4 miles) into enemy lines and striking targets with high-resolution imagery have emerged as key tools in the Russia-Ukraine war.

These schools were given additional initial funding, as well as recurrent, per-pupil funding. They had freedom from local council control and from the national curriculum, and more flexibility in ...

Fresh defects have been uncovered on one of Scotland’s ‘fiasco’ ferries almost on the eve of it finally entering service. The Glen Sannox will begin carrying passengers on Monday, but its ...

Ellie Cook is a Newsweek security and defense reporter based in London, U.K. Her work focuses largely on the Russia-Ukraine war, the U.S. military, weapons systems and emerging technology.