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Speckle interferometric system for measuring ocular microtremor

2008-10-19, Ryle, James P., Al-Kalbani, Mohammed, Collins, Niamh, Gopinathan, Unnikrishnan, Boyle, Gerard, Coakley, Davis, Sheridan, John T.

A compact optical system has been developed capable of measuring minute movements of the eye. Eye movement is simulated through the application an electrical signal to a piezoelectric material which acts as the eye’s surface. Using this device, both the amplitude and frequency components of this movement can be accurately measured.