https://www.selleckchem.com/pr....oducts/3-methyladeni
We investigated the relation between corneal regular and irregular astigmatism in normal human eyes. In 951 eyes of 951 patients, corneal irregular astigmatism, such as asymmetry and higher-order irregularity components, was calculated using the Fourier harmonic analysis of corneal topography data within the central 3-mm zone of the anterior corneal surface. The eyes were classified by the type of corneal regular astigmatism into four groups; minimum ( less then 0.75 diopters), with-the-rule (WTR), against-the-rule (ATR), and o