What Is Keratometric Astigmatism?
Keratometry (K) Is the Measurement of the Corneal Curvature; Corneal Curvature Determines the Power of the Cornea. Differences in Power Across the Cornea...
Keratometry (K) is the measurement of the corneal curvature; corneal curvature determines the power of the cornea. Differences in power across the cornea (opposite meridians) results in astigmatism; therefore, keratometry measures astigmatism.
What is the Keratometric index of cornea?
The keratometric index is an effective index that accounts for the negative power introduced by the posterior corneal surface. Consequently, keratometry attempts to predict the total corneal power based only on a measurement of the anterior corneal surface.
Why is keratometry done?
What is it? Keratometry is a technique used for the measurement of anterior corneal curvature of the eye with the help of keratometer. What is it done for? It is primarily done to diagnose the presence of astigmatism and to determine the degree and treatment of astigmatism.