The Role of Oxygen Permeability: Why it matters for daily lenses
Contact lenses have revolutionized the way millions of people correct their vision, offering comfort, convenience, and freedom from glasses. However, one crucial factor that often goes unnoticed is the role of oxygen permeability in contact lenses, particularly in daily disposable lenses. Understanding Oxygen Permeability:- Oxygen permeability, also known as oxygen transmissibility, refers to the ability of a contact lens material to allow oxygen to pass through to the cornea ; the clear, outermost layer of the eye. The cornea relies on oxygen from the air to maintain its health and function properly. Insufficient oxygen supply can lead to discomfort, dryness, and other complications, such as corneal neovascularization and swelling. The Importance of Oxygen Supply:- The cornea is avascular, meaning it does not have blood vessels to supply oxygen directly. Instead, oxygen must diffuse from the surrounding air and tears to reach the corneal cells. When wearing contact lenses, this ...