The Chicago-based 7th U.S. Circuit Court of Appeals recently reversed a class-action certification order in a consumer lawsuit that alleged that the eye drops used to treat glaucoma were larger than necessary, and those who used the drops were overpaying. Even if the defendants – Allergan, Alcon, Bausch and Lomb, Pfizer, Merck and Prasco – sold tiny eye drops that were cheaper and just as effective, consumers still got what they paid for, Judge Richard Posner wrote for court.