Interprets corneal topography keratometry (K) readings. Normal flat K: 40–47 D; normal steep K: 40–47 D. Astigmatism = K steep − K flat. Average K > 48 D suggests corneal steepening (keratoconus screening). K < 40 D suggests flat cornea. Mean K guides IOL selection and contact lens fitting.
Enter the values for the scenario you are assessing. Interprets corneal topography keratometry (K) readings. Normal flat K: 40–47 D; normal steep K: 40–47 D. Astigmatism = K steep − K flat. Average K > 48 D suggests corneal steepening (keratoconus screening). K < 40 D suggests flat cornea. Mean K guides IOL selection and contact lens fitting. Use the corneal k-readings result to inform your calculation.