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Table 1 Physicochemical and rheological properties of Viscoat and Visthesia

From: Viscoat versus Visthesia during phacoemulsification cataract surgery: corneal and foveal changes

Property Viscoat® Visthesia®
Manufacturer Alcon Laboratories Zeiss
Ingredients CDS/NaHa NaHa/LH
Concentration (%) 4 CDS/3 NaHa 1.5 NaHa/1 LH
Viscosity (mPas) 40000 500000
Molecular weight (Dalton) 22500 CDS/>500000 NaHa 3000000
Osmolarity (mOsm/L) 330 280-330
pH value 7-7.5 7-7.4
  1. NaHa = sodium hyaluronate; CDS = chondroitin sulfate; LH = lidocaine hydrochloride