A new model for filming fundus fluorescein angiography
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R816.97

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    Abstract:

    AIM:To improve the usage of digital-modified fundus angiography with traditional film for fast focusing and clear pictures with normal light.METHODS:The modified fundus angiography with traditional film was widely used in clinical application,but it had the following defects:it’s difficult to focus on CCD and result in poor clarity;imaging is focused by measured point;a photograph is needed for calculation because of no zero point;time of camera shutter is a little long,and etc.We modified the usage of this kind of imaging machine including:camera’s position is determined according to the reflection of illuminate light on cornea;the image position is based on eye position and refer to the instantaneous image on CCD;the fine-tuning knob is equipped with scale;photos are taken as soon as injection started,and shutter is pressed 3 seconds ahead for reducing waiting time.RESULTS:FFA can be finished under normal light,and the imaging process does not require further adjustment after regulation of fine-adjustment knob.The quality of photos is quite good as well as patient compliance.CONCLUSION:It is effective to do FFA by corneal reflex focusing and scales on fine-tuning knob.Doctors in primary hospital should learn to take full use of the current conditions during daily work.

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Gui-Ling Zhao, Yu-Dong Chen, Yan-Hua Pang, et al. A new model for filming fundus fluorescein angiography. Guoji Yanke Zazhi( Int Eye Sci) 2011;11(2):296-298

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