ABO advance study guide Correct 100%

When taking seg height measurements, which of the following situations could result in a parallax error? - ANSWER Patient sitting/ dispenser standing erect Which of the following is not significant in identifying the problem of vertical imbalance? - ANSWER Patient's age Which of the following elements is NOT critical when determining vertical imbalance? - ANSWER Lens power in the 180 degree meridian A prism will displace the object being viewed towards its ________. - ANSWER Apex A prism will bend light towards its _______. - ANSWER Base When dealing with problems of vertical imbalance which is the critical meridian of total lens? - ANSWER 90 Which of the following prescriptions would pose the greatest prismatic imbalance at a reading depth of 10mm? - ANSWER OD +2.50 OS -0.25 +2.50 x 090 A plus lens moved downward from the primary position will result in: - ANSWER Base down prismatic effect What is a hereditary pigmentary degeneration of the retina called which results in gradual loss of peripheral vision? - ANSWER Retinitis pigmentosa What is ocular hypertension? - ANSWER Elevation of pressure in the eye above the range considered with an detectable changes in vision or damage to the structure of the eye. or Eye pressure can be elevated and cause damage in some eyes, but no damage in others. Which of the following statements is false regarding corneal ulcers? Corneal ulcers can be ________. - ANSWER of little concern Approximately what percentage of humans have some alterations in lens tra