Jones D P, Webber W R, Smith A T, Lloyd-Jones D, Wright P
J Biomed Eng. 1982 Apr;4(2):113-7. doi: 10.1016/0141-5425(82)90071-1.
A new low-voltage ophthalmic fluorophotometer is described. A solid state photodetector has been combined with a high-gain, low-noise amplification and synchronous detection system to develop a stable, relatively inexpensive instrument. Reliable measurements of sodium fluorescein concentration in the eye can be made down to 100 ng/ml (0.26 mumol/l) which allows the estimation of corneal permeability and tear flow rates. Preliminary measurements of tear turnover rate using the fluorophotometer are presented.
本文介绍了一种新型的低电压眼科荧光光度计。固态光电探测器与高增益、低噪声放大及同步检测系统相结合，研制出一种稳定且相对廉价的仪器。该仪器能够可靠地测量眼中荧光素钠的浓度，低至100 ng/ml（0.26 μmol/l），从而可估算角膜通透性和泪液流速。文中还给出了使用该荧光光度计对泪液更新率的初步测量结果。
