People who have lupus are more likely to have low levels of vitamin D. Those with lupus who have higher levels of vitamin D tend to have less lupus disease activity, symptoms and flares. There are higher rates of lupus flares in winter months than in summer months.
1 Sepsis. 2  The most common cause of ARDS is sepsis, a serious and widespread infection of the bloodstream. 3  Inhalation of harmful substances. 4  Breathing high concentrations of smoke or chemical fumes can result in ARDS, as can inhaling (aspirating) vomit.ronchioles and alveoli. The mechanical cause of ARDS is fluid leaked from the smallest blood vessels in the lungs into the tiny air sacs where blood is oxygenated. Normally, a protective membrane keeps this fluid in the vessels.
1 If a headache follows the flashes, it is called a migraine headache.. If these flashes or lines of light occur without a headache, it is called an ophthalmic migraine, or a migraine without a headache.  Posterior vitreous detachment - Posterior vitreous detachment (PVD) is a common condition usually caused by aging. The vitreous, which lies against the retina, is the jelly-like substance that fills the center of the eye. Made mostly of water, the vitreous fluid gives the eye its shape. As we get older, the composition of the vitreous changes, and becomes less firm. This change sometimes causes the vitreous to pull on the retina. If the force of the pulling becomes strong enough, the vitreous may actually separate from the retina. When this occurs, we see flashes of light or stars. Most of the time a PVD is annoying but harmless. However, about 5% of the time, a PVD can cause a retinal tear or detachment.