OBJECTIVE MEASUREMENT OF WAVE ABERRATIONS OF THE HUMAN EYE WITH THE USE OF A HARTMANN-SHACK WAVE-FRONT SENSOR

A Hartmann-Shack wave-front sensor is used to measure the wave aberrat ions of the human eye by sensing the wave front emerging from the eye produced by the retinal reflection of a focused light spot on the fove a. Since the test involves the measurements of the local slopes of the wave front, the actual wave front is reconstructed by the use of wave -front estimation with Zernike polynomials. From the estimated Zernike coefficients of the tested wave front the aberrations of the eye are evaluated. It is shown that with this method, using a Hartmann-Shack w ave-front sensor, one can obtain a fast, precise, and objective measur ement of the aberrations of the eye.