Bifocal - Study guides, Class notes & Summaries

ABO EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS If the wearer complains of the bifocal line being somewhat in his way when driving, the problem may be alleviated by decreasing the distance between pads. True or False - Precise Answer False If the wearer complains that the glasses feel snug but still slip down the nose, one likely cause is that: A. The frame is too small B. The bridge fit is tight C. Pressure is being applied by the temple shafts anterior to the ear. D. Pressure ...

NCLE Study Questions with Correct Answers annular bifocal contact - Answer-A lens with distance portion ground into the center of the lens and the near portion ground into the periphery aphakic lenses - Answer-lenses designed for post-cataract fitting apical zone of cornea - Answer-the central portion of the cornea with a constant radius of curvature. Also called the corneal cap. artificial tears - Answer-medications, many of them over the counter, to treat dry eyes aspheric lens ...

If the wearer complains of the bifocal line being somewhat in his way when driving, the problem may be alleviated by decreasing the distance between pads. True or False correct answers False If the wearer complains that the glasses feel snug but still slip down the nose, one likely cause is that: A. The frame is too small B. The bridge fit is tight C. Pressure is being applied by the temple shafts anterior to the ear. D. Pressure is being applied on the very tips of the temples. corr...

The answer is D. The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas permeable lens. If the posterior optical zone is steepened, it will increase the sagittal depth. If it is flattened, it will decrease the sagittal depth. Changing the power, which is accomplished by changing the anterior optical zone, will not affect the sagittal depth of the lens, nor will changing its edge design. - 1. The sagittal depth of a rigid gas permeable contact lens can be a...

ABO Exam Answered With Correct and Verified Answers Isaac Newton's corpuscular theory of light (Ans: - light is small particles of energy Christian Huygens wave theory of light (Ans: - light is a series of waves of varying lengths the speed of light (Ans: - 186,000 miles per second (in air) Change a bifocal Rx to a single vision Rx (Ans: - Add the bifocal power to the sphere powers. OD: -0.50 OS: -0.25-0.25x172 Add: +1.75 Turns into- OD: +1.25 OS: +1.50-0.25x172

COA Exam Questions and Answers Already Passed A "with" reflex associated with what refractive error? Hyperopia A bitemporal defect always suggest a defect in the Chiasm A cycloplegic ideal for office use d/t rapid onset and short duration Cyclopentolate A dendritic ulcer of the cornea is usually caused by what virus? Herpes simplex virus A disadvantage of chemical-based contact lens care system Irritation A headache that is preceded by flashing lights for 15 minutes is inv...

Given the following information: K's 45.00 @ 180/42.00 @ 90 Rx -2.00 -4.25 x 90 Which of the following RGP lens designs would best correct this wearers vision? a. 45.00 -2.00 b. 42.00 -2.00 -4.25 x 90 prism ballasted c. 42.00 -2.00 d. 42.00/45.00 -2.00 - Answer-d. 42.00/45.00 -2.00 A _________ lens is a translating bifocal: a. concentric b. aspheric c. deffractive d. segmented - Answer-d. segmented A ________auxiliary trial lens will extend the keratometer to 61.00 D. a. -1.25 b....

The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas permeable lens. If the posterior optical zone is steepened, it will increase the sagittal depth. If it is flattened, it will decrease the sagittal depth. Changing the power, which is accomplished by changing the anterior optical zone, will not affect the sagittal depth of the lens, nor will changing its edge design. - Answer 1. The sagittal depth of a rigid gas permeable contact lens can be altered ...

If the wearer complains of the bifocal line being somewhat in his way when driving, the problem may be alleviated by decreasing the distance between pads. True or False - False If the wearer complains that the glasses feel snug but still slip down the nose, one likely cause is that: A. The frame is too small B. The bridge fit is tight C. Pressure is being applied by the temple shafts anterior to the ear. D. Pressure is being applied on the very tips of the temples. - Pressure is being app...

NCLE Practical Exam Which Curve is the Flattest? A) 7.5 mm B) 44.75 D C) 7.6 mm D) 45.50 D - 7.6 mm Inflammation of the Eyelids is Called: A) Palpebritis B) Keratitis C) Conjunctivitis D) Blepharitis - Blepharitis The Base Curve of a Rigid Lens was Ordered at 7.75 mm but Received at 7.85 mm. The Lens is _______ than ordered. A) 0.50 D Flatter B) 0.50 D Steeper C) 1.00 Flatter D) 1.00 Steeper - 0.50 D Flatter The Fairness To Contact...