What is the approximate curvature of the limbus in relation to the cornea?

The limbus is the border area where the cornea meets the sclera, and its curvature is indeed similar to that of the sclera. The relationship between the limbus and the cornea is essential for maintaining the eye's structural integrity and visual function.

In practical terms, this similarity in curvature is critical for the fitting of contact lenses, as a proper fit depends on how well the lens contours with the eye's surface. When the curvature of the contact lens aligns with the limbus and sclera, it helps in achieving optimal comfort and visual acuity.

Understanding this relationship helps eye care professionals make informed decisions regarding lens design, especially when considering factors like lens material and thickness, which can affect how the lens sits on the eye.