模拟手术:超声乳化——水分离及核雕刻

采用模拟眼科手术基础型超乳模型眼演示如何对晶状体核进行水分离,然后使用改进的“分而治之”技术来雕刻晶状体核。这些模型眼睛使学员能够将他们在 EyeSi 模拟器上学习过的一些技能在更真实的环境中进行练习。虽然这些眼睛没有后囊膜,但受训者仍然可以学会在雕刻核时避免损坏前囊膜,并且他们也会感觉到在破裂之前需要将核刻槽多深。

除了Cyber​​sight 的图书馆以外,您还可以在这里找到各种模拟手术视频,展示了使用不同类型的模拟技术来进行各种眼科手术的技巧。

Transcript

中文版字幕附于视频下方,英文原版字幕如下:

0:11

In this clip, we’re showing how the simulated ocular surgery basic phaco eyes can be used to practice sculpting of the nucleus in hydrodissection. Here we can see hydrodissection being carried out. And quite frequently, you can see a little wave of fluid at the periphery of the capsulorhexis, but you don’t see fluid passing round the back of the lens, as you would in a human eye.

Our trainees have practiced their hydrodissection and hydrodelineation skills on the EyeSi. This just lets them reenact those maneuvers in a more lifelike scenario.  When it comes to phacoemulsification, the principles they’ve learned on the EyeSi of creating a nice steep-sided groove, maintaining the eye in the primary position without pushing the lens, letting the phaco probe do the work, are all enforced with this mode of training.

This is a soft gel eye. And you can see, as the probe passes through it, we’re getting a nice steep-walled trench. Sometimes you have to use slightly higher vacuums than you would use in your normal sculpt mode to remove the nuclear material. As you get deeper, although there’s no posterior capsule, you can see that lightning of the reflex, which lets the trainee know when they’ve got to the correct depth.

Again, just going down the back slope to create a nice uniform rectangular profile of the initial groove.

Here, you can see the second instrument being introduced via the side port. And this is going to be used to rotate the nucleus.

With the soft gel eyes, the lens material is relatively soft, and so the second instrument just slides into the lens material a little bit more than it would in a human eye.

This is less of a problem with the white, harder basic phaco eyes. So again, the same principles of creating a nice divide and conquer-type formation, before rotating the lens around.

Here’s another eye, different colored iris, same consistency of lens. Again, just practicing the sculpting technique. Getting a nice groove, getting into a rhythm, with efficient use of the phaco probe, letting the probe cut through the lens, rather than pushing through the lens. And keeping the probe — depth of the groove, rather — one and a half probe widths. Just using my finger there, just to clear the view.

Again, second instrument being introduced. This time, a mushroom manipulator, using it to rotate the lens.

You can see how it’s relatively soft. But it still rotates, and it gets the trainees to practice in a different environment what they’ve learned on the EyeSi.

Using that two-handed technique to manipulate the lens without putting excessive pressure on the lens’s zonules.

Just rotating to complete the final bit of sculpting before the nucleus is cracked. And finally, just completing the fourth groove, avoiding the anterior edge of the rhexis, before dividing the nucleus into quadrants.

Last Updated: July 2, 2026

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