Figure 6.

Tracking tear exchange underneath the lens. The post-CL gap (yellow arrow) was imaged using our newly developed ultrahigh resolution OCT before and after the instillation of OCT-scattering media (Soothe XP, Bausch & Lomb, Rochester, New York). The light scattering from the 10 × 10 pixels within the gap was quantified and normalized by the background noise. The intensity of the scattering was used to quantify the mixing/exchanging of the tears with the scattering media. The increase of scattering was evident in OCT images after instillation of the media. The inserted graph showed calculated intensity of the scattering in the post-lens tear film, which demonstrated possible tear exchange.