Goldmann tonometry is based on which law?

Goldmann tonometry is fundamentally based on the Imbert-Fick law, which relates to the measurement of pressure within a sphere or a similar structure. This law states that the pressure inside a sphere can be determined by the balance of forces acting on it, specifically the relationship between pressure and the curvature of the surface of the sphere. In the context of Goldmann tonometry, it allows for the calculation of intraocular pressure by applying an external force to flatten a known area of the cornea and measuring the force required to do so.

This method assumes that the cornea behaves like a thin elastic shell, and the pressure measured reflects the balance between the elastic properties of the cornea and the intraocular pressure. The accuracy of this tonometry method is enhanced because it takes into account the biomechanics of the eye and provides a reliable estimate of intraocular pressure, which is critical for diagnosing conditions such as glaucoma.

The other laws mentioned in the choices are not directly applicable to the principles and mechanism behind Goldmann tonometry. Bernoulli's law pertains to fluid dynamics and flow, Hooke's law addresses the relationship between force and deformation in elastic materials, and Pascal's law concerns fluid pressure within a closed system. While these principles may have relevance