2022年12月16日 · Epiphora happens when something causes you to make too many tears or stops them from draining away from your eyes like they should. Epiphora can happen for lots …

2024年12月18日 · Symptoms of a retinal tear include flashes and floaters: Flashes look like flashing lights, streaks of lightning, or stars in your field of vision. Flashes are an optical illusion …

2023年4月18日 · 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 …

2025年1月10日 · What do tears do? Your eyes produce three types of tears: basal tears, reflex tears and emotional tears. Each type has a different function. Basal tears. Basal tears are …

2022年11月2日 · Your tear system (lacrimal apparatus) is a network of glands, sacs and ducts around your eyes. It makes new tears and drains old ones out of your eyes. Dry or watery …

Tears are a clear liquid secreted by the lacrimal glands (tear gland) found in the eyes of all land mammals. [1] . Tears are made up of water, electrolytes, proteins, lipids, and mucins that form …

2009年6月1日 · Excessive tearing, also known as epiphora, is due to a disruption in the balance between tear production and tear loss. Numerous etiologies lead to an excess of tears, and …

2019年7月16日 · 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 …

2024年10月3日 · Tears are made of mucus, water, and oil, and each component plays a role in the eye. Mucus coats the surface of the eye and helps bind the tear layer to the eye. Without a …

2019年6月24日 · According to the American Academy of Ophthalmology (AAO), you make 15 to 30 gallons of tears every year. Your tears are produced by lacrimal glands located above your …