The curve on the front surface of a contact lens is referred to as what?

The front surface of a contact lens is most accurately referred to as the Base Curve. The Base Curve is the primary curvature of the lens and plays a crucial role in determining how well the lens fits the eye. It is designed to match the shape of the cornea, which helps to ensure optimal positioning of the lens on the eye and contributes to the quality of vision.

Selecting an appropriate Base Curve is essential, as it directly influences both the comfort of wearing the lens and the lens's optical performance. If the Base Curve is too steep or too flat compared to the natural curvature of the cornea, it can lead to discomfort, compromised vision, or even potential eye health issues.

While the terms "Anterio Blending area," "K," and "Anterio Optical Zone" might relate to specific aspects of lens design or corneal measurements, they do not correctly identify the curvature of the front surface of contact lenses. The Base Curve specifically encompasses the overall curvature that is vital for contact lens fitting.