模拟眼科手术进阶型小梁切除术模型眼可以模拟小梁切除术的所有步骤。本视频演示了如何分离结膜、制作巩膜瓣、进行巩膜造口术和周边虹膜切除术。视频演示了模拟手术和实际手术同时进行的双屏画面，充分展现了该模型的逼真程度。
除了Cybersight 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：
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The next stage of the operation is suturing of the scleral flap.
We use 10-0 nylon for this part of the operation, and the synthetic surgery eye is ideal for practicing suturing skills with this demanding material.
I prefer to place a fixed 10-0 nylon suture in each corner of the scleral flap. As this allows the trainee who is learning to pass releasable sutures. Save time in which to develop this technique. It reduces the time that the eye is hypotonus, as placing the releasable suture can sometimes be a little time-consuming. So I cut the fixed suture long, because it’s going to be later removed.
Placing the fixed suture at the other corner of the scleral flap. We do put water on the surface of the simulated surgery eye as this makes handling the 10-0 nylon somewhat easier. And again, it’s more like the natural situation, when operating on the patient’s eyes.
As this second suture is tied, the eye can be reestablished with saline injected through the paracentesis, to normalize the pressure during the process of placing the more time-consuming releasable sutures.
The first step of the releasable suture is to pass the needle backhand towards the limbus, with the needle exiting through the corneal groove that’s been placed previously. The needle is then regripped and passed in the conventional direction, finally emerging through the scleral flap about 2/3 along its length.
The needle is then re-passed through the corner of the scleral flap, underneath and emerging just beyond the end of the fixed suture. Being careful not to perforate conjunctiva. At this point, the fixed suture can be safely removed, and the releasable suture can be completed.
The suture’s pulled through, leaving a small loop protruding from the scleral flap. And then the suture is tied back onto that loop, using three turns.
The precise technique used for the releasable suture is at the surgeon’s discretion. For example, some surgeons use four turns on their releasable sutures, as it provides a more secure grip and a lower likelihood that the suture can be loosened if the patient rubs their eye.
Placing the second releasable suture, starting with a backhand pass of the needle, pulling the thread through. Regripping the suture. And then passing it through and along the scleral flap. Reemerging about two thirds of the way along the flap. Pulling the suture through again. And passing the suture under the fixed suture.
Particularly important as the suture reemerges, not to buttonhole the conjunctiva. At this point, the fixed suture can be cut, and removed.
The releasable suture is then tied with three turns, back onto the loop. The eye is now reestablished with injection of BSS through the paracentesis into the anterior chamber, and the tension of the releasable sutures can then be checked to ensure the high pressure within the eye.