Facts About Tears - American Academy of Ophthalmology Tears are essential to help you see clearly and maintain the health of your eyes They can also help communicate your emotions Your body makes three types of tears Basal tears are in your eyes all the time to lubricate, nourish and protect your cornea
How Tears Work - National Eye Institute Tears keep your eyes wet and smooth, and they help focus light so you can see clearly They also protect your eyes from infections and irritating things, like dirt and dust Find out what tears are made of and how they protect your eyes
What Are Tears Made Of and Why Do We Cry? - AARP We cry to protect our eyes, to wash out irritants and because, well, we are moved to tears “There are three types of tears: basal tears, emotional tears and reflex tears,” explains David Silverstone, M D , a professor of ophthalmology at the Yale School of Medicine
Tears - definition of tears by The Free Dictionary b tears A profusion of this liquid spilling from the eyes and wetting the cheeks, especially as an expression of emotion c tears The act of weeping: criticism that left me in tears 2 A drop of a liquid or hardened fluid