Traditional Herbal Eye Drops Master Wong Eye Drops is made from the finest traditional chinese herbs. Every batch of this eye drop will take about 40 hours to manufacture. Master Wong Eye Drops will relieve eye irritations caused by airborne pollutants. To cleanse and remove eye irritations, just apply one to two drops of Master Wong Eye Drops to the affected eyes. The illness will clear itself within 15 minutes. Direction: Use 1 to 2 drops in each eye 3 to 5 times daily as needed. Expiry Date: Each batch valid for 3 years from 'date of production. Manufactured by: Master Wong of Kampong Cina, Pantai Remis, Perak.