Analysis on Visual Imaging Quality Affected by Human Eye’s Higher Order Aberration Measurement

In the 1990s, human eye’s wave front aberration measurement technology achieved rapid development. Williams DR etc. proposed two indirect wave front aberration measurement methods, namely, interferometry and double optical path methods. 

The former obtains human eye’s Modulation Transfer Function (MTF) by making use of interference that produces interference fringes with different aerial modulation degrees while the latter obtains MTF via irradiating ideal spherical wave into eye pupil, receiving wave-front information carrying aberration reflected from human eye via CCD (Charge Coupled Device), and analyzing its image.