SANTA CLARA, Calif., Oct. 23 -- The US Food and Drug Administration has deemed VISX Inc.'s STAR excimer laser systems as safe and effective for the treatment of hyperopic astigmatism. VISX develops refractive laser technology for the US and other countries. : We are extremely pleased to add another FDA-approved indication to our product offering, said Liz Davila, president and COO of VISX. The ability to treat hyperopic astigmatism on the VISX STAR laser systems will benefit our customers and their patients.