Scientists have studied flaxseed oil for dry eyes due to its omega-3 fatty acid content.
A 2019 research review investigated the potential benefits of omega3 and omega6 polyunsaturated fatty acids on dry eye.
The researchers noted a small improvement in the stability of tears, but noted that more research is needed.
Verywell / Alexandra Shytsman
Substances such ascytokinesandeicosanoidsin tears are indicators of inflammation.
Inflammation and dry eye are closely related.
Inflammation in the eye is both a precursor and a symptom of reduced tear production.
So reducing inflammation may be helpful in reducing dry eye symptoms.
Topical use showed the greatest reduction in inflammation.
Researchers compared it to a formulation containing the other ingredients but no flaxseed oil or trehalose.
The 12-item questionnaire evaluates dry eye symptoms including ocular symptoms, vision-related function, and environmental triggers.
Researchers found that both supplements alleviated the signs and symptoms of dry eyes and showed improvements in OSDI scores.
Keratoconjunctivitis sicca is a condition that causes dryness and inflammation in the eyes.
The study authors found that the supplements helped relieve dry eye symptoms.
Both oils have been studied for their benefits in the treatment of dry eye.
Longchain omega3s are found predominantly in oily fish like salmon, mackerel, anchovies, or sardines.
Flaxseed oil contains only small amounts of DHA and EPA.
Another study actually compared flaxseed oil to omega-3 oil supplements.
Most omega-3 supplements contain DHA and EPA, derived from fish.
Possible Side Effects
Flaxseed oil is generally considered to be safe when consumed by adults.
Large doses of flaxseed oil may cause diarrhea.
Flaxseed Allergy
Some people have allergic reactions to flaxseed oil.
Itching, hives, nausea, and vomiting are all signs of an allergic reaction to flaxseed oil.
Discontinue use and see your healthcare provider if you have an allergic reaction.
Dosage and Preparation
There is no standard recommended dosage for the daily intake of flaxseed oil.
Consider adding foods rich in omega-3s, such as salmon, mackerel, sardines, and flaxseeds.
Flaxseed oil should not be administered directly to the eyes unless directed by a healthcare professional.
Adding flaxseed oil directly to the eyes may cause blurry vision.
Instead, try flaxseed oil supplements available in capsule or liquid form.
Speak with your physician about the appropriate intake of omega-3s.
What to Look For
Flaxseed oil capsule supplements are available at health food stores and many drugstores.
Look for cold-pressed flaxseed products that are labeled with all the ingredients and dosage recommendations.
Also be sure to check the expiration date.
Do not take flaxseed oil or consume flaxseeds if you are pregnant or breastfeeding.
It may cause complications due to its hormonal effect.
If you have consistently dry eyes, speak with your healthcare provider or ophthalmologist for more information.
Summary
Dry eyes can be uncomfortable and have an impact on your quality of life.
Flaxseed oil may provide lubrication to reduce dry eyes and help improve your eye health and comfort.
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