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 (PKU) (phenyl + ketone + -uria; /ËfinÉlËkitÉµnËjÊÉriÉ/) is an inborn error of metabolism involving impaired metabolism of phenylalanine, one of the amino acids.Phenylketonuria is caused by absent or virtually absent phenylalanine hydroxylase (PAH) enzyme activity.n people without PKU, the PAH enzyme breaks down any excess phenylalanine from these sources beyond what is needed by the body. However, if there is not enough of the PAH enzyme or its cofactor, then phenylalanine can build up in the blood and brain to toxic levels, affecting brain development and function.