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Published on: April 1, 2019
Effects of dietary high dose DHA omega-3 supplement in dry eye with meibomian gland dysfunction
1Department of Ophthalmology, Pusan National University School of Medicine&Medical Research Institute of Pusan National University Hospital, Busan 49241, Republic of Korea.
Aim:
To evaluate the clinical efficacy of dietary supplement of high dose DHA omega-3 in dry eye with meibomian gland dysfunction (MGD).
Methods:
Prospective randomized double-masked, placebo-controlled clinical trial was conducted in mild to moderate dry eye patients with MGD. Patients have no history of taking any dietary omega-3 supplements before 3mo. Patients were divided into two groups: 24 patients in the omega-3 group and 26 patients in the placebo group. The omega-3 group received two capsules of Easyeye Dry®, total containing 600 mg of EPA and 1640 mg of DHA, while the placebo group received two capsules containing 3000 mg of olive oil. All patients take two pills once a day. The examination of MGD scores, tear break-up time (TBUT), corneal staining test (NEI), strip meniscometry (SM tube), and ocular surface disease index (OSDI) scores were performed at baseline, after 4 and 8wk.
Results:
A total of 50 patients were included. There were no differences in baseline characteristics between the two groups, such as age, sex, and other ocular examination findings. The TBUT, NEI, and OSDI scores significantly improved after 4 and 8wk in both groups. While after 8wk TBUT (6.00±1.62s vs 5.08±1.28s, P=0.034) and MGD score (7.2±1.8 vs 8.1±2.6, P=0.033) in the omega-3 group was more significantly improved than that of the placebo group.
Conclusion:
Dry eye with the MGD patient, a high dose of DHA omega-3 dietary supplement can improve TBUT and MGD score after 8wk, effective in stabilizing the tear film.
