But this contest has electrified me, and I feel like 40 years old,” he says. Dr Singh fondly remembers how he had operated upon former President Giani Zail Singh in 1986.
He has to his credit several firsts. He was the first to introduce lens implantation in cataract surgeries in India in 1976.
He developed artificial cornea called Singh-Worst keratoprosthesis in 1979. He was the first in the world to use plasma energy in eye surgery in 1999.