Astigmatism - Causes. Causes of astigmatism. The vision problems caused by astigmatism are a result of defects within the eye. These defects are usually present from birth. How the eye works. The eye is made up of three functional components. Astigmatism usually occurs as a result of problems with the cornea or lens.
Other Health Benefits of Celery. Though celery is an excellent anti-cancer food, its numerous health benefits make it a perfect choice for your healthy diet. The celery plant is naturally rich in vitamins and minerals such as: A, C, K, folate, molybdenum, potassium, fiber, and other healthy components.
A native of Eurasia and the Mediterranean, celery was once prized by the Romans and Egyptians for its medicinal properties. Today celery can be found in most grocery stores, and you can easily fit celery -- at just 16 calories per cup -- into a calorie-controlled diet.