How normal is the corneal thickness?

Corneal thickness is usually measured

in the central cornea and peripheral cornea. The thickness of the central cornea is relatively thin, usually between 0.5 mm and 0.55 mm, which is the key area for light to enter the eye and form a clear image. The peripheral cornea is relatively thick, with a normal value ranging from 0.7 mm to 1 mm, providing protection and support for the eye.

It is worth noting that the normal value of corneal thickness is also affected by individual differences, age, disease status and other factors. Therefore, when measuring corneal thickness, it should be interpreted and judged by professional doctors using professional equipment and combined with the specific conditions of patients.