Thanks to its impactful ingredients, krill oil is becoming a go-to for managing dry eyes (4).
Here’s how it may be able help…
1. Can Improve Tear Production
Antarctic krill oil is rich in phospholipids, a type of fat that includes the mineral phosphorus. Phospholipids are found in every cell in the body—including your tears (5).
They’re a part of what’s called the lipid layer, which provides a smooth eye surface and wards off feelings of dryness (6).
When you boost your phospholipid intake with krill oil, they go to work in the body to help your eyes produce more tears. Which may mean less dryness and less eye pain.
2. May Reduce Inflammation Around the Eye
Omega-3 fatty acids provide energy to every corner of your body, keeping your heart, lungs, and other systems functioning smoothly. They’ve also been associated with reducing dry eye symptoms.
It’s no surprise that krill oil is packed with them.
There are three main types of omega-3s: Alpha-linoleic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA). Each one plays a different role in keeping your body healthy, and DHA and EPA are especially associated with eye health (7).
There are several different ways omega-3s are thought to help manage dry eye syndrome, and one of them is through reducing inflammation around your eyes (8).
Inflammation is a normal immune response used to protect the body from injury or invaders like infection or disease. But when inflammation becomes chronic, it can create all kinds of unwanted symptoms.
When it comes to your eyes, inflammation in the cornea, tear glands, or outer layers of the eye can prevent your body from making the tears that it needs. It can also cause your tears to have disproportionate amounts of the water, salts, and oils that they naturally contain.
All of this equates to—you guessed it—dry eyes. When more omega-3s are added to the picture, they can help soothe the inflammation that’s causing dry eye syndrome (9).
3. Can Promote Blood Flow to the Eyes
Krill oil contains an antioxidant called astaxanthin. It’s found in certain types of seafood, is renowned for its anti-inflammatory properties, and is the force behind salmon’s famous shade of pink.
In recent studies, astaxanthin has been associated with improved outcomes among several ocular diseases, including glaucoma, cataracts, diabetic retinopathy, and some types of macular degeneration (10).
Astaxanthin has been found to combat one of the most pernicious causes of dry eye: Reduced blood flow to the eye. This incredible ingredient can increase the blood flow your eyes have been missing, which offers a sigh of relief for itchiness and pain (11).
4. Slowing Your Tears from Evaporating
Like any other liquid, your tears evaporate. And if yours evaporate too quickly, you can find yourself with dry eye syndrome.
But there’s a solution for this, and once again, it involves those trusty omega-3s that make krill oil so nutrient-dense.
In a 2015 study focusing on people who’d acquired dry eye syndrome from computer vision, omega-3 fatty acids were found to ease their symptoms by slowing the rate of tear evaporation (12).
5. Enhancing Your Tear Gland Function
Another one of omega-3’s superpowers is the work it does to boost your eyes’ tear gland system.
Your eyes have tiny glands on the edge of the eyelid called meibomian glands, which are responsible for producing the oil film that helps keep your eyes moist. When those glands don’t function properly, your eyes may become less moisturized, resulting in discomfort.
When omega-3s come into play, they help improve the oil film and seemingly help your meibomian glands improve their function (13).