Ponnanganni Keerai also known as water amarnath leaves is a nutritious greens. This helps to increase eyesight. The name itself suggests the benefits of this keerai. In Tamil Pon means gold. Ponnanganni means that pon agum kan ( you get golden eyes meaning the eyesight improves). There are so many health benefits in this leaves.
According to Ayurveda, if these leaves are fried in ghee and mixed with little pepper and salt and consumed for 48 days, you get a glowing body and cool eyes. These leaves are also good for lactating mothers. It also improves the function of lever.