What is the fine-grained topic of the following text: The experts at Vitamin Science have studied the mechanisms of Dry Eye Syndrome, and Dr. Paul Krawitz was awarded United States Patent 7,638,142 for “Therapeutic Composition for the Treatment of Dry Eye Syndrome,” in December 2009 for his Dry Eye Relief® Formula. Only return the topic.
Dr. Paul Krawitz's Patent for Dry Eye Syndrome Treatment