The study mentioned below states that both objective and subjective measurements of dry eye disease were improved with 12 weeks of Omega Fatty Acid ingestion. 2 grams a day, this is about the third study, and the first that I have seen that uses a placebo to confirm the concept of treating Dry Eye with nuetraceuticals!
This means that if your contacts are causing some discomfort, 2 gams of omega fatty acids may make them more comfortable.
I have been personally recommending this addition to many of my patient’s diets. It is easy and not expensive. The only problem I see here is who funded the study. I have not been able to determine that. The publication is top notch….Cornea.
Study: Oral Omega-3 Supplementation Effective Treatment for Dry Eyes A new study available ahead of print in Cornea demonstrated that oral consumption of re-esterified omega-3 fatty acids was an effective treatment for dry eye disease and resulted in a statistically significant improvement in its primary endpoint of tear osmolarity, as well as its secondary endpoints after 12 weeks. A total of 105 subjects completed the study that assessed oral nutrition as the primary therapy for dry eye disease in patients with confirmed Meibomian gland dysfunction focused on the effect of oral re-esterified omega-3 fatty acids on tear osmolarity, MMP-9, Ocular Surface Disease Index, tear break-up time, Schirmer’s score, corneal staining and the omega index. The multicenter, prospective, interventional, placebo-controlled, double-masked study randomized subjects (54 in treatment group, 51 in control group) to receive four softgels (PRN Dry Eye Omega Benefits) containing 1,680mg of eicosapentaenoic acid (EPA)/560mg of docosahexaenoic acid or a control of 3,136mg of safflower oil (linoleic acid), daily for 12 weeks. Study participants were measured at baseline, week six and week 12 for tear osmolarity, TBUT, OSDI, fluorescein corneal staining and Schirmer test with anesthesia. MMP-9 testing and omega-3 index were done at baseline and at 12 weeks.
Where I saw this review: https://www.reviewofoptometry.com/newsletter/op/optometric-physician-august-8-2016