In clinical ophthalmic surgery, patient’s eye is not fixed and non-steady state. Surgical operation will be extremely complex and dangerous, which need doctors have a good hand-eye coordination and operating accuracy. Recently, the development of surgical training system promotes the learning speed of clinical experience. Some of them are based on animal specimens. The operating habits and perceptions are similar to the real situation. However, the live animal experiments are more and more challenged by animal ethics. the live animal experiments will be unable to meet the growing demand for training. Others are based on Virtual Reality (VR), which use software to produce realistic images, haptic and other sensations [1]. However, the operating habits and perceptions are quite different from the real situation, and the operating object is stationary. Therefore, it is necessary to develop a device that can simulate the physiological movement of eye to make the result of training can be as close as possible to the actual surgical procedure.

In this paper, an eye movement simulator based on 3-DOF parallel mechanism is presented. The simulator is also equipped with flexure joint, which simulates the biomechanical properties of extraocular muscles. The design and analysis of mechanical will be described.

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