Boston Rewetting Drops for Rigid Gas Permeable Contact Lenses, 0.33 Fl Oz (Pack of 1) Description: Boston Rewetting Drops recondition and coat gas permeable (GP) lenses to relieve minor irritation and discomfort during contact lens wear. They help remove debris that may cause irritation, discomfort, and blurred vision, and may extend GP contact lens wearing time by wetting the lenses while they're in your eyes. Key Features: Enhances lens wettability to reduce friction against your cornea Helps remove debris that may cause irritation, discomfort, and blurring during lens wear.