The cornea and lens are also responsible for focusing incoming light on to the retina to create a clear image. To work properly, the cornea needs to be perfectly curved, like the surface of a football. However, in astigmatism the cornea is shaped irregularly, like the surface of a rugby ball.
Celiac disease. Celiac disease is an autoimmune disease in which people canât eat gluten because it will damage their small intestine. If you have celiac disease and eat foods with gluten, your immune system responds by damaging the small intestine. Gluten is a protein found in wheat, rye, and barley.
Signs of celiac disease begin to show not only in childhood patterns, but can also develop at more mature ages. What causes celiac disease is often linked to hereditary reasons, certain genetic disorders, and autoimmune disease. Some indicators can include anemia, bad liver function, autoimmune thyroid disease, Down syndrome, Microscopic colitis (colon inflammation), and Turner Sydrome (an incomplete sex chromosome).