SMTube has been already introduced in an ophthalmic article.[1] Moreover, SM test using SMTube would be useful for rapid screening of the tear function. This advantage is more pronounced when a large number of examinees are involved in some specific examinations under specific situation.[2]

[1] O. M. Ibrahim, in Ophthalmic Care Qualification for Specialists: A Road to the Dry Eye Specialist (Ed.: N. Yokoi), Nakayama Shoten, 2013, pp. 171-174 (Japanese).

[2] S. Ishikawa, N. Kato, Y. Okamoto, D. Takeuchi, Talk in Annual Meeting of Japanese Society of Lacrimal Passage and Tear Dynamics, Session Number RR-7-1, Tokyo, 2014 (Japanese).