Extracts of herbs that possess preventive and curative properties are used for Netradhara. The procedure of this eye treatment is very simple. A stream of herbal extract is gently poured into the eyes of the patient who lies on the Droni. The patient is made to lie on both sides in order that both eyes are thoroughly inundated. This in normally done for health problems related to eye.
Traditionally, the extract is streamed through a funnel made with a jackfruit tree leaf. But any device that lets out a small, continual stream is enough.