In the 1920s, Swedish ophthalmologist Henrik Sjogren first began to investigate and publicize patients with dry eyes and mouth. His research led to the recognition of Sjogren's Syndrome. Later Sjogren and his ophthalmologist wife gathered a group of patients with dry eyes and mouth and in most cases chronic arthritis. He presented a thesis with his findings on Sjogren's Syndrome in 1933. Today scientists continue to study the disease, however, treatment and knowledge regarding Sjogren's Syndrome are still minimal.