Factors Causing CL Discomfort

"Researchers found that excessive lens movement, inferior lens decentration, poor surface wettability and deposits, inferior corneal staining and Asian ethnicity were associated with discomfort and dryness in silicone hydrogel wearers," notes Healio. "Truong and colleagues, in a study published in Optometry and Vision Science, evaluated 4,164 records of 220 subjects wearing comfilcon A or enfilcon A silicone hydrogel contact lenses in 46 different studies. Lens fit and performance and subjective comfort and dryness were assessed at insertion and after 3 and 6 hours of wear, the study abstract said." Read more.