What was gas blindness during World War 1?

Answer 1

During WWI, both the sides used gas as a weapon for chemical warfare. Generally, poison chlorine was used. The gas masks gave only some protection. But the gas could cause temporary or even permanent blindness. They even caused sever damage to the lungs. The soldiers then suffered a long and a painful recovery. The mustard gas, which came into use since 1917, caused blistering of the skin and prompt asphyxiation to those who inhaled it.

--Swaroop Atnoorkar,

Mumbai, Maharashtra,

India.