Your eye doctor can estimate the amount of astigmatism you have by shining a light into your eye while manually introducing a series of lenses between the light and your eye. This test is called retinoscopy.
Causes of Ketones in the urine (Ketonuria): See detailed list of causes below. Ketones in the urine (medical symptom): The presence of ketones in the urine. The list of medical condition causes of Ketones in the urine (Ketonuria) includes: 1  Uncontrolled diabetes. 2  Glycogen storage disease.  Starvation.
Paroxysmal Nocturnal Hemoglobinuria Causes. The main reason behind the occurrence of PNH is the mutation in the single stem cell gene named PIG-A. The gene is located on the X-chromosome in oneâs bone marrow. The exact reasons responsible for triggering this gene mutation are not known yet.