Purpose: Corneal opacity is a common clinical problem that directly impedes the cornea's function of light transmission. Despite this, there are no standard means of quantifying opacity. The purpose of this review is to summarize the reported options both clinicians and researchers have for objectively assessing corneal opacity. Methods: Review of the peer-reviewed literature reporting methods for assessing clinical opacity and transparency in both the research and clinic setting. Conclusion: Although a number of techniques for assessing corneal opacity have been reported in the literature, none have been widely adopted, highlighting the fact that there is still a need for an accessible, objective and easy to use method for quantifying corneal opacity.
Keywords: Cornea; OCT; fibrosis; imaging; opacity.