Bifocal lens - Study guides, Class notes & Summaries

1-2mm slit, med to high magnification, cross-sectional view of cornea, corneal clarity, lens deposits, illumination system 45-50 degrees off: a. Indirect microscope, b. Paralellpiped Reflection, c. Sclerotic Scatter, d. Retroillumination - Answer-B. Paralellpiped Reflection 1-2mm slit, med to high magnification, fine lens deposits, subtle corneal imperfections, corneal endothelium, illumination system is 30 degrees off: a. Optic Section, b. Diffuse Reflection, c. Specular Reflection, d. Pa...

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...

"Haptic" lens is used in reference to - Scleral lens A aspheric PCC - Is a toric pcc and has a specific eccentricity value A bi-toric rigid lens will show - Two base curves on the radiuscope, sphero-cylindrical rx on the lensometer A bifocal design that utilizes a small central reading area and a distance periphery is - Reverese Centrad A dynamic flourescein pattern is best illuminated by - Cobalt blue light A finished contact lens will have the following properties - 1. Diameter cut to...

ABO EXAM PRE-TEST Questions And Answers 100% Verified. 150 mm - correct answer. When ordering a six inch temple, its corresponding millimeter value is which of the following? A. 135 mm B. 140 mm C. 145 mm D. 150 mm 500 mm - correct answer. What is the focal length of a 2 diopter lens? A. 500 cm B. 39.37 inches C. 500 mm D. 2 meters Nanometers - correct answer. Wavelengths are measured in A. Meters B. Decimeters C. Centimeters D. Nanometers UVC - corr...

The larger the frame difference --------- the lens shape A. Rounder B. More squared off C. Narrower D. Wider - Narrower Which of the following statements regarding CR-39 lenses is not correct? A. They are light B. They are thinner than glass lenses C. They scratch easily D. They are tintable - They are thinner than glass lenses A customer complains that his old glasses have better visual acuity than the new glasses (same RX). What should the optician do? A. Return the customer to the...

Ophthalmic Medical Assisting Exam Q & A 2024. What does the abbreviation JCAHPO stand for? - ANSWER Joint Commission on Allied Health Personnel in Ophthalmology What responsibility routinely falls to the ophthalmic medical assistant? - ANSWER Performing certain diagnostic tests Which eye care professional is a medical doctor? - ANSWER Ophthalmologist Which eye care professional routinely fills prescriptions for eyeglasses? - ANSWER Optician What does an orthoptist do? - ANSWER Evaluates ...

NCLE Advanced Certification Exam 2023 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. - CORRECT ️️ 1. The s...

ABO Practice Exam Questions And Answers (Updated And Verified) 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 - answerFalse 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 i...

NCLE Practice Exam Questions With Verified Answers The advantages aphakia have over spectacle lenses - answerLess peripheral aberration Less magnification Increase visual field not having a lens inside your eye - answerAphakia Which of the following can aphakia cause, myopia or hypermetropia? - answerHypermetropia Causes of aphakia - answer*Congenital absence of lens *Surgical Aphakia *Absorption of lens matter *Traumatic extrusion (push or forced out) *Posterior dislocation- in vitre...

NCLE Advanced Certification Exam Questions With Correct Answers Latest 2024 (GRADED) 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...