![]() ![]() ![]() In human trials, it improves both the signs and symptoms of moderate to severe dry eye with effects lasting beyond the treatment period. Thymosin β4 (Tβ4), a small, naturally occurring protein, promotes complete and faster corneal healing than saline alone or prescription agents (doxycycline and cyclosporine) in various animal models of eye injury. Despite these therapies, successful resolution of the problem is limited because none of these treatments fully addresses the underlying causes of dry eye to promote ocular surface repair. For more severe forms of the disease, serum tears and scleral contact lenses are employed. Current treatments include artificial tears gels lubricants tear duct plugs and anti-inflammatory agents such as steroids, doxycycline, and cyclosporine. Dry eye disorders are becoming more common due to many causes, including an aging population, increased pollution, and postrefractive surgery.
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