What Are Contact Lenses Made Of?
Nearly every soft lens sold today is silicone hydrogel. The material is not a specification-sheet detail — it determines how much oxygen reaches your cornea, how much water the lens loses during the day, and how many hours you can comfortably wear it. The three families 1. Hydrogel HEMA-based polymers saturated with water, between 38%…
Dr. Teresita Bollar, OD