Conventional pulse echo ultrasound techniques are widely used to obtain dimensional information on the position of interfaces within the eye and for imaging lesions. High-resolution biomicroscopy employing high frequency (> 20 MH ultrasound measurements is possible for the front portion of the eye. However, such high frequency signals do not penetrate to the retina and beyon Hence, a lower frequency transducer is normally used to measure these larger dimensions, giving rise to a loss of relative distance information
