Final answer:
The optical power of the cornea is determined by its curvature and refractive index.
Step-by-step explanation:
The optical power of the cornea is determined by two factors: the curvature of the cornea and the refractive index of the cornea.
The curvature of the cornea refers to its shape. A steeper curvature means a stronger focusing power, while a flatter curvature means a weaker focusing power.
The refractive index of the cornea is a measure of how much light is bent as it passes through the cornea. A higher refractive index means a greater bending of light, resulting in a stronger focusing power.