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Dry eyes are typically treated with artificial tears often containing hyaluronic acid (HA).

The problem with these eye drop preparations is that they do not stay on the eye surface for very long.

Tamarind seed polysaccharide or TSP is more adhesive, enabling it to stick to the surface of the eye longer.

TSP is used as an ingredient in food material and in pharmaceutical products.

ADVERTISEMENT (article continues below) In a comparative study, Drs.

Maurizio Rolando and Cristiana Valente from the University of Genoa, Italy had 30 dry-eye sufferers use TSP or HA drops three or more times per day for 90 days.

The TSP eye drops performed as well as the HA drops on several objective measures of dry eye syndrome.

Furthermore, the TSP drops did a significantly better job of relieving several key subjective symptoms of dry eye syndrome - namely, trouble blinking, ocular burning, and the sensation of having something in one's eye.

"The significant differences between products in some subjective symptom scores are interesting and warrant further investigation in a larger study population," Rolando and Valente write.

Both products were well tolerated with no reported cases of blurred vision or burning or itching sensations in the eye.

"This confirms their suitability, even fo...

Dry eyes are typically treated with artificial tears often containing hyaluronic acid (HA).

The problem with these eye drop preparations is that they do not stay on the eye surface for very long.

Tamarind seed polysaccharide or TSP is more adhesive, enabling it to stick to the surface of the eye longer.

TSP is used as an ingredient in food material and in pharmaceutical products.

In a comparative study, Drs.

Maurizio Rolando and Cristiana Valente from the University of Genoa, Italy had 30 dry-eye sufferers use TSP or HA drops three or more times per day for 90 days.

The TSP eye drops performed as well as the HA drops on several objective measures of dry eye syndrome.

Furthermore, the TSP drops did a significantly better job of relieving several key subjective symptoms of dry eye syndrome - namely, trouble blinking, ocular burning, and the sensation of having something in one's eye.

"The significant differences between products in some subjective symptom scores are interesting and warrant further investigation in a larger study population," Rolando and Valente write.

Both products were well tolerated with no reported cases of blurred vision or burning or itching sensations in the eye.

"This confirms their suitability, even for frequent use, as tear substitutes in the treatment of dry e...