What does zoned mean?

zone4dThe core of our product will be soft contact lenses. Zonedin Vision offers soft hydrogel and silicone hydrogel monthly lenses.Our hydrogel lenses are made of Etafilcon-A (58% waterDefinition of zoned adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.