INTENDED PURPOSE OF VISCOELASTIC
Ophthalmic viscosurgical devices are intended to be used during posterior and anterior segment surgery in the human eye to create and maintain space, to manipulate intraocular tissue and to protect the corneal entothelium.
INDICATION FOR USE
Viscoelastics are for use during anterior segment intraocular surgery, such as cataract extraction and IOL implantation. It has to be entirely removed from the eye after completion of the procedure.
HPMC & HPMC PLUS
HPMC viscoelastic is non-organic, water soluble and enzyme resistant which helps to provide viscosity and pH stability during storage. Viscoelastic is clear, sterile and non-pyrogenic. HPMC viscoelastics have been demonstrated to have a high degree of biocompatibility. Its dispersive characteristics are especially suited for protecting the endothelilum, while it effectively maintains space and gently manipulates delicate intraocular tissue.
EyeCoat
2% hydroxypropyl methylcellulose (HPMC) viscoelastic with a nominal viscosity of 3,000 cPs.
EyeCoat Plus
2% hydroxypropyl methylcellulose (HPMC) viscoelastic with a nominal viscosity of 16,000 cPs.
EyeCoat SH
Sodium hyaluronate viscoelastic is available in a range from 1% to 3% with a possible viscosity range of 2,000cPs to > 75,000cPs. Viscoelastic SH is clear, sterile and non-pyrogenic. Sodium hyaluronate viscoelastics have been demonstrated to have a high degree of biocompatibility. Its cohesive characteristics are especially suited for phacoemulsification since its higher viscosity enables it to effectively maintain space and gently manipulate delicate intraocular tissue. It is also used during glaucoma filtering, corneal transplantation and retinal attachment. SH viscoelastics may also be used to coat intraocular lenses and ophthalmic surgical instruments during cataract extraction and intraocular lens implantation.
Viscoelastic is not FDA approved and is currently unavailable in the US