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.
Most optometrists offer medical treatment for common eye problems (such as dry eyes and eye infections) and certain chronic eye diseases (such as glaucoma). But certain eye disorders require treatment by an ophthalmologist, particularly if surgery or other specialty care is needed.