Abstract: A method to determine the cholesterol level in a patient in a non-invasive manner by delivering a beam of light to a patient's eye. The intensity of light scattered from the aqueous of the eye and the mobility of the protein scatterers in the eye are measured and compared to a control.An apparatus to detect the cholesterol level in a patient in a non-invasive manner which delivers a beam of light to a patient's eye, collects the scattered light from the patient's eye and correlates the scattered light to a cholesterol level measurement.

Abstract: A constant-flow regulator for use in gravity-assisted liquid-delivery systems, wherein the regulator comprises: upper and lower cylindrical elements secured together for movement to form a chamber, whereby the height of the chamber formed by the upper and lower sections may be varied; and a double conical float element positioned within the chamber, the float element moving between a closed and an open position, whereby one or the other end of the float element moves upwardly or downwardly to seal an inlet or an outlet, in order to maintain constant the liquid level within the closed container formed by the first and second cylindrical elements.