What characteristic is associated with a lens described as having a steeper base curve?

A lens with a steeper base curve is characterized by better alignment with the cornea. The base curve of a contact lens is designed to match the curvature of the cornea, which is crucial for ensuring that the lens sits correctly on the eye. When the base curve is steeper, it conforms more closely to the natural shape of the cornea, leading to improved comfort and stability of the lens on the eye. This alignment can also enhance the optical performance, as the lens’s position will be optimal for vision correction.

In contrast, a steeper base curve does not inherently lead to increased lens thickness, decreased diameter, or worse vision correction. Finding the right base curve is essential for a good fit, as it can significantly affect how the lens performs and the wearer's overall experience. Therefore, understanding the relationship between lens curvature and corneal shape is fundamental in contact lens fitting and provides insights into optimal lens selection.