Use coriander juice to improve weak eyesight
According to the Central Council for Research in Ayurveda and Siddha under the Ministry of Health and Family Welfare, if a small quantity of Dhanyaka leaf (or, coriander) juice is taken with honey it can have positive effect on eyesight.

Two to three teaspoons (7-14 milliliter ml.) coriander juice with 5-10 gram honey can help in improving eyesight