What does the base curve of contact lenses mean? Is it better to have a large or small base curve?

Contact lenses are worn by many people and are a common product. So what does the base curve of contact lenses mean? Is it better for contact lenses to have a large or small base curve?

What does the base curve of contact lenses mean?

The base curve is actually the curvature of the contact lens. The larger the base curve, the flatter the curvature of the contact lens. If the base curve of the lens is too large for the eyeball, the contact lens will not stick to the eyeball and will slip; otherwise, it will make the eyes feel tight and uncomfortable. When buying cosmetic contact lenses, you must choose a base curve that suits the curvature of your eyeball.

Is it better for contact lenses to have a large or small base curve?

Generally, it is better to be bigger than smaller. The base curve of most Asians is between 8.4 and 8.6. A few may be smaller or larger, usually between 8.0 and 8.9. When choosing a contact lens base curve, it is generally better to be larger rather than smaller. If the measured base curve is 8.4, then wearing contact lenses between 8.4 and 8.6 is fine, that is, the best choice is within the range of 0.2 larger than the base curve.

Okay, now you know what the base curve of contact lenses means.