What is a common characteristic of an inverted or flat fitting lens?

An inverted or flat fitting lens characteristically demonstrates edge lift or standoff. This occurs because the base curve of the lens is either too flat or improperly aligned with the curvature of the cornea, which can lead to the edge of the lens not conforming properly to the eye's surface. As a result, the lens may not sit as closely to the cornea as intended, causing it to lift slightly at the edges.

This standoff effect can influence the lens's stability on the eye and its overall performance, potentially leading to issues with vision acuity and comfort. It is essential for practitioners to recognize and correct fitting characteristics like edge lift in order to ensure optimal lens wear and patient satisfaction. Understanding this behavior of inverted or flat fitting lenses is crucial for managing lens fit effectively.