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E-poster/E-video Room (Tokyo International Forum G408/G505, Imperial Hotel 2F Hana)


Instruction in Basic Techniques for Cataract Surgery Using Simulated Models and Diagrams

Fumio Hosaka Tomoaki Takemori Hiroshi Ohguro

Although basic techniques for cataract surgery have become standardized, they are not always easy to perform for beginners, who require instruction from supervisory surgeons. We have made a video simulation of cataract surgery that is intended to aid acquisition of skill in operating surgical instruments, incorporating models and diagrams.

Summary of Content
1. Continuous curvilinear capsulorhexis. The grasping position of the forceps and the position for tearing the anterior capsule are moved apart gradually. The technique for changing the dragging direction of the capsular flap is shown as a GIF animation.
2. Cutting the nucleus of the lens. For cutting a trough in the lens nucleus, the leading edge of the ultrasound tip advances, but the body of the handpiece should not move forward. The sagittal view of the simulated surgical model shows the rotational motion of the handpiece.
3. Rotation of the lens nucleus. To rotate the divided lens nucleus properly, the motion of the hook requires a certain knack to accomplish. This involves not only a seesaw motion but also sliding of the fulcrum point. The trajectory of the hook is shown as a GIF animation.
4. Dragging of the lens nucleus. For safety, during phacoemulsification, a piece of the divided lens nucleus should be dragged to the center of the capsule. A model of the eye shows that the trough created and use of the hook allows the nucleus to pass through.

[ Keyword ]
cataract surgery / instruction

[ Conflict of Interest ]

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