Tender For supply of foldable intra ocular lens for astigmatism correction, hydrophobic, single piece, iolspecific ations: 1) foldable hydrophobic single piece aspheric toric lens 2) cylinder power range upto 6 diopter. 3) toric calculator software to be available online in internet. 4) optic with 360 degree sharp square edge. 5) optic diameter - 6 mm or more and a constant: ultrasound 118.8-119, optical 119.1-119.3 6) overall diam eter- 13 mm. to 13.25 mm 7) refractive index- 1.50 to 1.55. 8) optic with uv absorbing properties, with nat ural yellow chromophore to protect from uv radiation. 9) iol preloaded in teflon coated polished cartridge i n pre-fitted injector. 10) the whole unit of preloaded iol in injector is to be supplied in a sterile pack. 10) t o submit a sample along with the tender for inspection. 11) facility for exchange of iol for the dioptric mat ching of iol for individual patient to be arranged at the hospital premises and whenever required within 12 hours, irrespective of the duration from date of purchase till the consumption of the lens is exhausted 12) t he manufacturer must have office and store with large stock of iol in kolkata/kolkata suberb for providing t he facility of exchange for diopter matching 13) satisfactory performance report of iol from preferably rail ways or govt. institute.,foldable intra ocular lens for astigmatism correction, hydrophobic, single piece, io lspecifications: 1) foldable hydrophobic single piece aspheric toric lens 2) cylinder power range upto 6 di opter. 3) toric calculator software to be available online in internet. 4) optic with 360 degree sharp square edge. 5) optic diameter - 6 mm or more and a constant: ultrasound 118.8-119, optical 119.1-119.3 6) over all diameter- 13 mm. to 13.25 mm 7) refractive index - 1.50 to 1.55. 8) optic with uv absorbing properties, with natural yellow chromophore to protect from uv radiation. 9) iol preloaded in teflon coated polished ca rtridge in pre-fitted injector. 10) the whole unit of preloaded iol in injector is to be supplied in a sterile pac k. 10) to submit a sample along with the tender for inspection. 11) facility for exchange of iol for the diopt ric matching of iol for individual patient to be arranged at the hospital premises and whenever required wit hin 12 hours, irrespective of the duration from date of purchase till the consumption of the lens is exhauste d 12) the manufacturer must have the facility of exchange for diopter matching 13) satisfactory performan ce report of iol from preferably railways or govt. institute. ]