Biotech is into the business of manufacturing and export for intraocular lenses/pmma lenses, opthalmic solutions and opthalmic devices described as follows:- intraocular lenses 1.acrylic foldable hydrophilic/hydrophobic intraocular lenses 2.pmma intraocular lenses ophthalmic solutions 1.viscoelastics 2.sodium hyaluronate 3.perfluoro carbon 4.silicone oil 5.trypan blue 6.carbachol ophthalmic devices 1.capsular tension ring 2.intrastromal corneal ring 3.iris retractor 4.surgical knives