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.
Phenylketonuria. 1  Inborn metabolic disorder in which the homozygous recessive individual lacks the enzyme phenylalaine hydroxylase needed to change phenylalanine (amino acid) to tyrosine (amino acid). 2  Lack of the enzyme phenylalanine hydroxylase is due to the the abnormal autosomal recessive gene on chromosome 12. In children, symptoms are mental retardation, decrease pigmentation of hair and skin and eczema.