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V sign in cornea transplant

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Uploaded by on May 21, 2009

Video demonstrates the "V" sign during penetrating keratoplasty. The "V" sign occurs when the needle passes at 99% depth on the host cornea. Because descemet's membrane is elastic, it travels with the needle forming a V until the suture is passed and the V is released. Observing the V during surgery ensures that one is a the correct depth when passing sutures during corneal transplantation.

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Science & Technology

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  • Thank you so much for posting. However, I don't hear any sound on this video and I can't see the V sign. Could you please put an arrow on the video to show the v?

  • I am going to drink a lot of beer now to forget I ever saw this.

  • wtf did you do to your eye?

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