An eye hospital in Hyderabad, L.V.Prasad Eye Institute, is restoring the blindness to persons caused during chemical accidents. A person lost his eye sight due to splashing of sodium hydroxide. By growing stem cells in the lab, a technique developed by Italian scientists and improvised by scientists in this institute, the doctors are able to restore the eye sight in quick time.
http://www.theworld.org/2012/05/stem-cells-india/
Workers may be complacent not to wear goggles while working with chemicals, assuming that the job is simple or short time job. Chemicals, particularly alkalies can cause retina damage when fall into eyes and not washed immediately and treated. Some workers wash with water for few minutes until they feel better instead of the recommended time period of atleast 15 minutes. Later these people develop complications and may risk their eye sight. One has to wash 15 minutes atleast because, studies say, even after this much period of washing, only about 95% of the chemical is washed and this should be followed with treatment/consultation from the doctor. Any neglect will prove costly.