Does viscoelastic stay inside the eye when we inject it there to protect the corneal endothelium? Or does it get washed out with the flow of balanced salt solution through the eye which can, at times, be hundreds of milliliters of fluid? In the case presented here, many tiny air bubbles are injected into the anterior chamber at the beginning of the case when the intra-cameral lidocaine is introduced. Next, these tiny air bubbles are pushed up against the corneal endothelium with injection of a dispersive viscoelastic. This case will show you that, yes, the viscoelastic is maintained and the corneal protected, until we intentionally remove it at the end of the case.
We can also use various dyes to tint the viscoelastic (also called OVD: Ophthalmic Viscosurgical Device, particularly in the USA since it classifies as a medical device instead of a pharmaceutical product). This technique uses tiny air bubbles instead which makes it safe as well as easy.
Click below to watch the video to see the results:
All content ©2018 Uday Devgan MD. All rights reserved.