Correcting refractive errors is performed by a health professional (NOT a Physician) trained to examine eyes to correct vision problems and eye disorders and is known as a(n) A . Yet a physician who specializes in the study and treatment of diseases associated with the eyes is known as an A . The physician can as an alternative to using corrective lenses for myopia perform A in which spoke-like incisions are made in the cornea to flatten it for myopia. Question 21 ( 0.5 points) A is a medical term meaning pain in the ear or earache. Another term that means abnormal ear discharge or bleeding from the external ear canal is A . This term means a symptom of abnormal drainage of pus from the ear and is called 4