My self being 68 years old went for eye check up in a reputed eye hospital in Chennai After examination I was told that Cataract is in its very early stage and immediate contract surgery is not needed and asked me to come after 6 moths check up. They have however suggested eye drop" Genteal Lubricant eye drop" for some time Kindly let me know purpose of that eye drop. Does it restrict/contain Glare which is my compliant.