Flexible fiberscopes and flexible videoscopes share many of the same components;however,in a video gastroscope,the eyepiece and lens of the fiberscope are replaced by a:

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There are two types of flexible endoscopes:fiberoptic endoscopes and videoscopes.
Fiberoptic endoscopes have an eyepiece with a lens for visualization;the image is carried through the endoscope via a bundle of tiny glass fibers.Videoscopes have,at their distal end,a video chip that provides an image that is directly viewed on a monitor;a videoscope does not have an eyepiece for direct viewing;the eyepiece is replaced with an endoscopic video camera.

Flexible Fiberscopes and Flexible Videoscopes Share Many of the Same