Lens centration was the fitting variable that was most dependent on base curve radius. Flatter lenses tended to decenter more. A flatter contact lens will likely have to move into the periphery to reach this point of stability. In most cases, the decentration was in the superior and/or temporal direction. It was also found that comfort complains were more common with flatter lenses. The optimal fits was highest with the 8.4mm base curve lens for all three ranges fit eyes decreased as base curve radius was increased. These lenses with steeper radii lead to better centration and therefore to better fit and comfort for more patients than do thin lenses with flatter radii.