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.
Causes of trace amounts of ketones in a urinalysis include early stages of ketoacidosis in diabetics, fasting, starvation, a low-carbohydrate or high-protein diet, and severe illness, states... Causes of trace amounts of ketones in a urinalysis include early stages of ketoacidosis in diabetics, fasting, starvation, a low-carbohydrate or high-protein diet, and severe illness, states...