2006-10-30 10:09:10 · 5 answers · asked by shawn 2 in Science & Mathematics ➔ Biology
To make tears
According to Wikipedia: http://en.wikipedia.org/wiki/Tear_Duct
"Tears are a liquid produced by the body's process of lacrimation to clean and lubricate the eyes. The word lacrimation may also be used in a medical or literary sense to refer to crying."
Read more of the article for more information.
That crude in your eye that you find after sleeping is actually mucus that has passed through your tear ducts and dried.
2006-10-30 10:12:28 · answer #1 · answered by Dan S 7 · 0⤊ 0⤋
Tear Duct Function
2016-12-18 06:47:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋
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Dry eye is one of the most frustrating problems for both the patient and the doctor attempting to help. Dry eye is a chronic ongoing dysfunction in either the quantity or quality of tears. At this point there really is no cure but there are several treatments that can be used in an attempt to control and modify the symptoms of dry eye. Punctal plugs attempt to improve comfort by reducing the amount of tears that are lost from the eye through normal drainage through the tear ducts. The fact that you have not seen any real improvement (which should be noticeable withing just a few days of inserting the plugs) means that either you are EXTREMELY deficit in tear quantity or that possibly your main problem is quality. Tears are composed of three different layers. Closest to the eye is the mucous layer. Then the fluid layer. And then on the surface is the oily layer. All three components are produced by separate tissues in the eye. A deficit in oil or mucous can result in symptoms that may not be as responsive to plugs. So, what other treatment options are there? Some of your other answers talked about Restasis. If your dryness is related to inflammation then Restasis may help. There have also been some studies that support the use of flaxseed oil. Some newer therapies include the use of topical steroids such as Lotemax in combination with lubricants such as Systane or Soothe. (Soothe is relatively new and I have seen some success with it). Another treatment that is relatively new and quite effective for some is long term low dosage oral doxycycline antibiotics to improve the function of the meibomian glands which secrete the oily layer along with ongoing use of Lotemax eyedrops. So which if any of the treatments is best for you? That's the ten thousand dollar question. The problem is that currently we really don't have a good diagnostic regimen for deciding exactly what type tear dysfunction a patient has. Is it fluid, oil, mucous, or maybe a combination of all three? Is it inflammatory in nature? Sometimes its difficult to tell. So right now the best we can do is start with treatment number one and if there is no real improvement then move on to treatment number two. Or maybe combine different treatments. I wish there were a magic bullet to cure the problem but right now it remains quite frustrating.
2016-04-06 02:01:40 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The tear glands and ducts serve to keep the surface of the eye lubricated, protecting it from irritants in the air. If the eye gets irritated for any reason, more tears are produced automatically to help wash out whatever is causing it.
2006-10-30 10:12:21 · answer #4 · answered by Blue Jean 6 · 0⤊ 0⤋
To keep the eye moist, and flush out dirt.
2006-10-30 10:10:56 · answer #5 · answered by Anonymous · 1⤊ 0⤋
to release the tear.....Duh!
2006-10-30 10:10:31 · answer #6 · answered by mizike 2 · 0⤊ 0⤋