When the cornea or lens has an abnormal shape, causing blurred images in near or distant vision, the condition is called ________. 

Fill in the blank(s) with the appropriate word(s).


astigmatism
Astigmatism occurs when the lens has an abnormal shape or the cornea is unevenly curved.

Health Professions

You might also like to view...

Which of the following statements is true regarding hemoglobinopathies but false in thalassemia?

a. Abnormal hemoglobin polymerizes inside erythrocytes, altering red cell shape. b. Novel hemoglobins composed of abnormal combinations of normal globin chains can be detected on hemoglobin electrophoresis. c. Elevations in embryonic and fetal hemoglobins can be observed. d. The amino acid sequence of the globin chains of the abnormal hemoglobins is normal.

Health Professions

If more than one physician is involved in a case, what priority order is used to determine the physician listed in form locator 17?

Ordering Provider, Referring Provider, Supervising Provider Referring Provider, Supervising Provider, Ordering Provider Supervising Provider, Ordering Provider, Referring Provider Referring Provider, Ordering Provider, Supervising Provider

Health Professions

The documented HPI is Extended

29-year-old woman returns to clinic with severe cough. Over the past five days, cough has become more persistent. Throat burns constantly during day. No identified postnasal drip, although patient rates throat pain at 8/10 all the time. Both cough and pain are much worse after eating evening meal. Identifies pain along the length of throat, a burning in her chest, and reports that her mouth tastes sour along with the presence of excessive saliva in her mouth. Throat lozenges exacerbate the pain but alleviate the bitter taste in her mouth. Ice chips provide temporary relief for pain. Patient feels very anxious about pain, reporting heart palpitations and anxiety: father diagnosed with stage II squamous cell esophageal carcinoma 14 months ago. Patient engaged in smoking cessation program nine months ago after a 12-year smoking habit. In addition to HPI, patient reports loss of appetite. No report of nausea, fever chills, diarrhea, swollen joints, unusual muscle aches, headache, double vision, painful urination, or shortness of breath. No identified skin rash. History of peptic ulcer at age 14, responded well to OTC treatment with no recurrence. Occasional problem with heartburn, but patient admits she has not kept track of her own health due to schoolwork, job and father's health problems. Bronchitis complicated by pleurisy last year, responded well to ABX treatment. No history of asthma. No known drug allergies. Patient is a second year law student at Collegetown Law. Alcohol: two to four beers a week average. Indicate whether this statement is true or false.

Health Professions

To determine potential post-operative risk of a patient preparing for surgery, the respiratory therapist should recommend which of the following?

A. cardiac stress test B. measurement of inspiratory capacity C. pulmonary stress test D. pulmonary diffusion studies

Health Professions