M5160 Mouse Eye Imaging Operating System is a stable, multi angle adjustable, and mechanically simple fixed device for mouse ophthalmic testing experiments, used in fundus imaging experiments. Its simple mechanical structure allows for easy operation of commonly used short focus optical ophthalmic examination components such as Volk mirrors and achromatic lenses. The instrument can rotate 360 degrees at any angle after fixing the mouse; The fixed structure of the incisor and nose clip can be adjusted back and forth, with the adjustment range of 0-35mm.