Characterization of Soft Contact Lens Edge Fitting during Daily Wear Using Ultrahigh-Resolution Optical Coherence Tomography

Figure 1

Edge conjunctival coverage and PoLTF underneath the peripheral lens. Conjunctival response to soft contact lens was characterized as an overlap of conjunctival tissue at the edge of the lens. The PoLTFs on the cornea and on the conjunctiva were clearly visualized as gaps between the lens and the ocular surfaces in (b). One was located at the peripheral cornea, and the other was located at the limbal transition to the conjunctiva. (b) and (c) were the magnified images of (a) and (d). (a) and (b) are balafilcon A lenses. (c) and (d) are galyfilcon A lenses. The bars denote 100 µm for two of the images (a) and (d) and 250 µm for the other two images (b) and (c).