Have your local health department or a lab test your water for bacteria, and If your Report shows a P next to either E.coli or Coliform Bacteria, that means there is the Presence of Bacteria & NO amount of this Bacteria is acceptable so the water MUST be treated to kill the bacteria to make it potable!
Optometrists also test for glaucoma and other eye diseases, and diagnose conditions caused by systemic diseases, such as diabetes and high blood pressure, referring patients to other health practitioners, as needed.
All are eye care professionals, but only an ophthalmologist is a medically trained specialist. Optometrists examine eyes, give advice on visual problems, and prescribe and fit glasses or contact lenses. If eye disease is detected, an optometrist will refer patients to an ophthalmologist for further management. In certain circumstances, ophthalmologists and optometrists work collaboratively in the care of patients, especially those with chronic eye diseases. 5 years at university leading to a degree in optometry.