What is indicated if a rigid lens shows excessive edge lift?

When a rigid lens shows excessive edge lift, it typically indicates that the lens is fitting too flat on the eye. This means that the curvature of the lens is not adequately matching the curvature of the cornea, leading to an increased distance between the lens edge and the corneal surface at the lens periphery. As a result, the edges of the lens tend to lift away from the eye, which can potentially lead to discomfort, reduced stability, and poor vision due to movement of the lens.

In contrast, a lens that fits correctly should have minimal edge lift, allowing it to align closely with the cornea and maintain a consistent position. A steep fitting lens, however, would show little to no edge lift, since its curvature matches the contour of the cornea more accurately. Good centration is also related to a proper fitting lens, but excessive edge lift suggests a misfit that would likely disrupt centering. Thus, observing excessive edge lift clearly suggests a flat fitting lens rather than an adequately or overly steep one.