DERBY, Kan. - A local optometrist admits he collected $500,000 for eye exams that he didn't perform. Forty-seven-year-old Wade D. Abbey of Derby pleaded guilty Thursday to five counts of wire fraud in the scheme that netted $583,060. Federal prosecutors allege that Abbey and his wife, Mindy L. Abbey, were paid extra fees for every eye exam they performed at Vision Doctors of Optometry in Derby. They allegedly gave false information about the number of exams to an accountant, who paid them based on that information. Abbey will be sentenced May 16th. Mindy Abbey is awaiting trial.