Based on K readings of 44.00 at 180/41.00 at 90 and Rx of -1.00-3.00X 90, which is the correct base curve and power?

To determine the correct base curve and power based on the provided K readings and prescription, we start with the K readings of 44.00 at 180 and 41.00 at 90. These measurements represent the corneal curvature, with the first value (44.00) likely corresponding to the flatter meridian and the second value (41.00) to the steeper meridian.

The prescription given is -1.00-3.00X 90, which indicates that the patient has a spherical equivalent of -1.00 and an astigmatic component of -3.00 at an axis of 90 degrees. When fitting contact lenses, it's important to choose base curves that accommodate the K readings, with a preference toward mimicking the corneal curvature to enhance fitting and comfort.

In the correct choice, the base curves are 41.00 and 44.00, which align closely with the K readings. The higher base curve (44.00) corresponds to the flatter curvature measurement, and the lower base curve (41.00) fits the steeper curvature. This alignment allows for a stable fit on the cornea while providing the necessary visual correction.

Looking at the power component, the selection of -