What effect does a steep fit have on the power of the lacrimal lens?

A steep fit of the lacrimal lens refers to a lens design that has a more pronounced curvature. When a lens is steeper, it generally means that its curvature radius is shorter. This leads to a greater degree of bending of light rays that pass through the lens.

As a result, a steeper lens will have a higher negative power, which is indicated by an increase in minus power. This occurs because the formula for lens power is inversely related to the radius of curvature. Therefore, as the curvature steepens (decreases in radius), the lens power becomes more negative. In the context of fitting contact lenses, if the lens is fitting too steeply, it can lead to increased minus power in the prescription needed for the wearer.

Understanding this relationship between lens curvature and power is crucial for optimizing vision correction and ensuring the comfort and effectiveness of the lens fitting process.