Dry eye syndrome occurs due to the inability of the tear glands to produce a sufficient amount of tears and often occurs in otherwise healthy individuals. It is common in the elderly and is occasionally associated with conditions such as rheumatoid arthritis and vitamin A malnutrition. Artificial tear drops, lubricating ointments and certain medications may be used to treat the condition. Certain herbs may also provide relief to patients with dry eyes.
Flaxseed Oil
Flaxseed oil is extracted from the seeds of flax plant and is a rich source of omega 3 and omega 6 fatty acids and alpha-linolenic acid. The University of Maryland Medical Center recommends 1 to 2 grams of flaxseed per day to treat Sjogren's syndrome which is an autoimmune condition in which the immune system attacks the tear glands and inhibits tear production, thereby leading to dry eye. Apart from flax seeds, flaxseed oil can also be obtained from synthetic supplements. Flaxseed oil may interfere with the absorption of certain blood pressure, cholesterol lowering and steroid medications and hence, should not be used without consulting a physician. The alpha-linolenic acid present in flaxseeds can also increase the risk of prostate cancer.
Tamarind Seed Extract
According to a study published in the March 2007 edition of "BMC Ophthalmology," eye drops containing tamarind seed extracts proved as effective as hyaluronic acid eye drops to treat dry eye. The researchers at Genoa University, Italy, who conducted this study, believe that the dry eye relieving properties of tamarind seed extract occur due to its mucoadhesive properties which are similar to eye glycoproteins are essential for protecting and wetting the eye surface. Tamarind seed extracts are safe to use. People in India and some Middle Eastern countries have used it to treat several conditions. However, you should talk to a doctor to avoid any possible adverse reactions and drug interactions.
Bilberry
Extracts from the fruits of bilberry or Vaccinium myritillus plant may help improve the blood circulation, oxygen supply and nutrients to the eye and may promote healthy functioning of the tear glands. The National Center for Complimentary and Alternate Medicine states that bilberry extracts are safe to use in mild to moderate doses. However, the long term effect of high doses of bilberry extract remains unknown and thus, you should not take it without consulting a doctor first.
Evening Primrose
Some studies, according to Home Remedy Central, reveal that the natural oils such as alpha-linolenic acid present in evening primrose may help cure dry eye. Evening primrose is a wild flowering plant native to the U.S. and the oils are extracted from its seeds. Evening primrose oil extracts can lead to mild side effects such as nausea and gastric upset. Individuals with bleeding disorders and those taking schizophrenia medications should avoid taking evening primose. As with any herb, you should talk to a doctor to fully understand the possible effects of evening primrose on the patient.
References
- University of Maryland Medical Center: Flaxseed Oil
- "BMC Ophthalmology"; Establishing the tolerability and performance of tamarind seed polysaccharide (TSP) in treating dry eye syndrome: results of a clinical study.; Rolando M and Valente C; March 2007
- National Center for Complimentary and Alternate Medicine: Bilberry
- Home Remedy Central: Dry Eyes
- University of Maryland Medical Center: Evening Primrose
