First, it is important to know that our tears are very important forever vision. The first thing light hits if this reaches your eye could be the tear film at first glance of the cornea. The cornea is much like leading window to the eye and the tears are just like a polish on that window. With each blink, the eyelid spread an even layer of tears throughout the cornea. This light will then be focused with the cornea and lens on top of the retina, forming a photo. When the tears dry out about the cornea, they leave a bumpy, irregular surface that distorts the sunshine coming into the eye and helps to make the image blurry. If the tears are continually drying out between blinks, the top of cornea becomes constantly irregular as a result of dead and dying corneal surface cells. This often triggers a reflex to produce plenty of tears, so many that the tear drain method is overwhelmed and also the tears drain down our face. When we see this within the clinic, we diagnose dry eyes.
Our tears contain 3 components: oil, water and mucus. The watery part is manufactured mainly inside lacrimal gland that’s within the upper outer a part of our eye socket beneath the upper eyelid. There are also many smaller glands around the insides of our own eyelids. The skin for the inside of our own eyelids makes mucus and rows of glands on our eyelid margins, just behind the eyelashes, make the oil. All three of these components should be present within the right comes down to make tears work. Without water, the tears gum up and you get eye matter. Without oil, the tears dry very quickly between blinks. Without mucus, the tears are extremely thin , nor cover the attention well.
This brings us on the causes of dry eyes:

Lack of tear production. This happens on account of age, inflammation with the tear glands (for example in Sj?�gren syndrome ), hormonal changes causing less production and loss in reflex tearing.

Excessive tear evaporation. Excessive evaporation can happen on account of tears having inadequate oil (usually because of blockage with the oil ducts) and not blinking enough (common with the computer or reading).

Eyelid conditions prevent the tears from being where correctly. Eyelid problems also lead to dry eye. These include poor blink as a result of a facial nerve problem (i.e. Bell’s palsy, facial or head injury), eyelid deformities, eyes not closing after over-aggressive eyelid
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lifting, plus cases where the eyes protrude, like thyroid eye disease.

So what could be done regarding it?

Get properly diagnosed by an ophthalmologist that knows dry eyes. They will try this by considering the eyes with a microscope, analyzing your tears with special drops and also other tests, and looking at the health of one’s corneal surface. They will likely examine the eyelids to ensure you blink and close a persons vision appropriately.

Use artificial tears. Nearly all kinds of dry eyes make use of extra tears. They need to be used often, at least 4 times daily and up to each and every 10-30 minutes in severe cases. There are many different viscosities of tears. The thicker they are, the longer they’ll last, but thicker tears often blur the vision for a time after they’re given. Tear ointments will also be helpful, especially during the night as they can significantly blur the vision when used during the day.

Keep your natural tears around longer. Plugs that block from the tear drains inside your eyelids will keep you from swallowing away all those tears because they drain to your nose. In more severe cases, we quite often permanently close from the tear drains, which could greatly improve the eye surface. Your natural tears may be enhanced by subtracting omega-3 supplements.

Practice good eyelid hygiene. Warm compresses for the eyelids to helps oils to circulate out with less effort into the tears. Lid scrubs with mild baby shampoo and domestic hot water across the eyelash margin will also keep your oil flowing and keep matter from accumulating inside eyelashes.

Prevent excess evaporation. Blocking out moving air is effective in reducing evaporative tear loss. This is done by putting on close fitting sunglasses during the day and in many cases special moisture goggles to bed in the evening. Avoid sleeping within ceiling fan or blowing the air conditioning at your eyes while driving.

Reduce or eliminate contact lens wear. Contact lens wearers may use tears or “re-wetting solution” to maintain the eyes more moist and improve lens wear comfort. Never put them on overnight and clean them often, it doesn’t matter what the lens manufacturers say.

In special cases, treat inflammation. In a small number of people with inflammation with the tear producing glands, eye drops like Restasis will help produce more tears. In my view, this prescription medication is over-prescribed in this country and few patients truly obtain a reap the benefits of it, so caveat emptor.

Dry eye is common and annoying, but could be readily treated and may even enhance your vision and overall eye comfort.