Abstract: As a representative of the new technology, wide\|field fundus fluorescein angiography has opened up areas previously unknown in the vitreoretinal subspecialty, which can image the Peripheral retina, much larger than the traditional range. Optos 200Tx scanning laser ophthalmoscope used for wide\|field fluorescein angiography was another breakthrough on the history of fundus angiography. With the Optos 200Tx imaging system, it is now possible to view up to 200°of retina in a single photograph, without pupil dilation and corneal contacting. As a new technology, Optos 200Tx was wildly accepted because of its high efficiency and safety, can be used for for those vascular diseases Involved the peripheral retinal or choroid, such as diabetic retinopathy, retinal vein occlusion, retinal vasculitis, uveitis, and tumors.  (Int Rev Ophthalmol, 2015, 39：103-106)