Optos公司推出广域快速视网膜影像检查设备

　　一种全景视网膜影像检查设备能够进行全角度视网膜影像检查，只需不到1秒钟的时间，而无需进行瞳孔扩张。

　　P200MA是由Optos公司(Dunfermline, Scotland)制造的，由扫描激光系统组成，将两个低能量激光整合成一束，投射到患者视网膜，通过一个200o扫描角进行操作。从视网膜反射的光束然后回到扫描系统，通过高度敏感的光-二极管转换为电脉冲。这些脉冲然后转换为数字并变换格式形成数字的广域视网膜影像。该扫描激光检眼镜利用影像系统形成患者眼睛的“虚拟扫描点”。该设备已经获得了美国食品药品管理局的批准。

　　Wider Horizons With Fast Retinal Mapping
 
　　A panoramic retinal imaging device enables wide-angle mapping of the retina in less than a second, without mandatory pupil dilation.

　　The P200MA, manufactured by Optos (Dunfermline, Scotland), is composed of a scanning laser system that combines two low-powered lasers into a single beam that is then projected onto the patient’s retina and manipulated through a 200o scan angle. Light reflected from the retina is returned through the scanning system and converted to electrical impulses by highly sensitive photo-diodes. These impulses are in turn digitized and formatted to create a digital wide-field image of the retina. The scanning laser ophthalmoscope device then uses the imaging system to create a “virtual scanning point” inside the patient’s eye. The device has been approved by the U.S. Food and Drug Administration (FDA).