Ophthalmic viscosurgical device (OVD)
A viscous substance (sodium hyaluronate, chondroitin sulfate, etc.) injected into the anterior chamber to maintain surgical space and protect the corneal endothelium; classified as cohesive or dispersive.
How it is used
Phacoemulsification and other anterior segment surgeries, to maintain chamber depth and protect tissues during manipulation.
Clinical tip
Combined cohesive-dispersive viscoelastics avoid the need to use two different substances during the same procedure.
Sources
This entry is part of the Instriq catalog, researched and written per specialty from real web research -- never generated or invented without verification -- and reviewed skeptically and independently before publication. How this catalog is written.