a contact lens that monitors the radius of curvature of cornea includes an amplification chamber, am annular membrane, a microfluidic channel, and a gas reservoir within a top and bottom lens layers of the contact lens. The annular membrane is positioned within the amplification chamber and is in fluid communication with the gas reservoir through the microfluidic channel. A working gas within the gas reservoir and a working fluid within the amplification chamber and the microfluidic channel create a fluid-gas equilibrium pressure interface. The curvature change of the cornea results the amplification chamber wall and the annular membrane to deflect, wherein the deflection results the fluid-gas equilibrium pressure interface baseline to change within the microfluidic channel. Then the baseline position change is recorded by an external imaging system to analysis sensitivity calculation of the cornea.
