2024 ABO advance study guide (A+ Guaranteed)

When taking seg height measurements, which of the following situations could result in a parallax error? correct answers Patient sitting/ dispenser standing erect Which of the following is not significant in identifying the problem of vertical imbalance? correct answers Patient's age Which of the following elements is NOT critical when determining vertical imbalance? correct answers Lens power in the 180 degree meridian A prism will displace the object being viewed towards its ________. correct answers Apex A prism will bend light towards its _______. correct answers Base When dealing with problems of vertical imbalance which is the critical meridian of total lens? correct answers 90 Which of the following prescriptions would pose the greatest prismatic imbalance at a reading depth of 10mm? correct answers OD +2.50 OS -0.25 +2.50 x 090 A plus lens moved downward from the primary position will result in: correct answers Base down prismatic effect What is a hereditary pigmentary degeneration of the retina called which results in gradual loss of peripheral vision? correct answers Retinitis pigmentosa What is ocular hypertension? correct answers 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 ________. correct answers of little concern Approximately what percentage of humans have some alterations in lens transparency after age 65? correct answers 60% What type of cataract is a fully developed opacity of the lens with fluid generation and swelling of the lens volume? correct answers Hypermature Which of the following statements is false regarding cataracts? correct answers Cataracts will only form in the nucleus of the lens.