Layton Rahmatullah Benevolent Trust or LRBT is Pakistan's largest non-governmental organisation, working to fight blindness in the country. It is assumed to be not only the largest eye provider in the country but also the largest eye care provider in the world to have treated over 48 million patients in 35 years also crossing daily OPD of over 10,500 (avg daily) patients every single day. Established in 1984, it is based in Karachi with hospitals and primary eye care centres throughout the country.