The whiteness of the sclera serves as a protective layer for the underlying structures of the eye, such as the cornea and iris. It also helps to reflect light and improve vision in bright environments.
The color of the sclera can vary from person to person, depending on factors such as skin tone, genetics, and overall health. Some individuals may have a slightly blue or yellow tint to their sclera, which is still considered normal.
Yes, the whiteness of the sclera can change due to various factors such as aging, certain medical conditions, and lifestyle habits. For example, smoking can cause the sclera to become more yellowish over time.
Discoloration of the sclera can be caused by several factors, including infections, inflammation, liver disease, and certain medications. It is important to consult a doctor if you notice any sudden changes in the color of your sclera.
While the whiteness of the sclera itself does not directly affect eye health, it can be an indicator of certain underlying conditions. Changes in the color of the sclera, such as yellowing or redness, can be a sign of inflammation or infection in the eye.