Abbott Medical Optics (AMO) has issued an advisory notice to customers of AMO STAR S4 IR Excimer Laser System and customers of AMO WAVESCAN WaveFront System regarding a defect of the Iris Registration (IR) software on the STAR S4 IR Excimer Laser System, Versions 5.00 through 5.22 and Versions 5.00 through 5.30 respectively. There is a malfunction of the compensation for pupil centroid shift in the affected software versions, which may lead to visual disturbances or reduced best corrected visual acuity.

According to the local supplier, the affected products are available in Hong Kong.

If you are in possession of the affected product, please contact your supplier for necessary actions.