Alison Ng PhD, BSc(Hons), MCOptom Post-Doctoral Fellow Centre for Contact Lens Research School of Optometry & Vision Science University of Waterloo Waterloo, Ontario Canada Medical Research: What is the background for this study? What are the main findings? Dr. Ng: Eye care practitioners often see patients coming into our clinics with eyeliner “floating” in the tears or adhered to the surface of contact lenses during our routine examinations. When products such as eyeliner enters and contaminates the tear film, some patients complain of temporary discomfort, and if they wear contact lenses, they may report blurred vision if the lenses become spoiled. Specifically in this pilot study, we wanted to look at how differently eyeliner migrated into the tear film when applied in two different ways: inside the lash line and outside of the lash line. (more…)