Patent ID: 8740795
Filing Date: 2014-06-03
Classification: A61B

Abstract:
1. A method for evaluating eye disease by measuring eye surface movement during an ocular pulse, said method comprising: identifying a blood pulse by sphygmomanometer on an arm, electrocardiography or ultrasonography; using a laser light source to form a coherent gaussian, sub-millimeter diameter, low divergence probe beam that strikes the central cornea of the eye at a high angle of incidence; using a processor synchronizing the beam with a blood pulse selected with a sphygmometer, electrocardiogram or ultrasonogram and record eye front surface movement; magnifying a received reflection from the cornea of the beam that strikes a CCD camera sensor array; calculating with a processor from the received beam reflected a plurality of parameters, including at least two from the group consisting of an ocular pulse amplitude waveform, a power spectra, a zero frequency amplitude of power spectrum, and non-zero frequency amplitudes, wherein the zero frequency amplitude of the power spectrum is a measure of energy in a mean intraocular pressure, and non-zero amplitudes are a measure of pressure changes during the ocular pulse that are indicative of eye disease.