Professor Kazuo Tsubota is the professor and chair of the Dept of Ophthalmology at Keio University School of Medicine, his alma mater, in Tokyo, Japan. An internationally recognized dry eye specialist, Prof Tsubota has been working on the pathogenesis and treatment of dry eye. One focus of his research is improving the ocular surface and proper function of vision through assessing functional visual acuity. Other research projects include ocular surface reconstruction, regeneration of the cornea, lacrimal gland, immunology of Sjögren’s syndrome, dry eye, and wound healing of refractive surgery. He was the first Japanese recipient of the American Academy of Ophthalmology Honor Award in 1994, and was president of IOSS from 2005 to 2008. Prof. Tsubota serves on the editorial boards for Journal of Refractive Surgery, Cornea, The Ocular Surface, Japanese Journal of Regenerative Medicine, and Eye & Contact Lens.