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Harder questions

QuestionAnswer
What type of optical material will disperse light? All material with non-parallel sides
When beginning a standard alignment on a frame? Always start with the temple tips
If the optician applies 2mm of retroscopic tilt on a frame, how will this cosmetically appear on the patient? The top of the frame will be closer to the eyebrow
When would a frontal angle be seen? While observing the nose from the front
What is commonly used to verify lens measurements on a progressive pair of eyeglasses? Watermarks on lenses, centration chart and pd stick
What measurement is located at approximately 40cm, or 16-18 inches? Reading vision
Standard AR coating is how thick? 1/4 wavelength
What is a nanometer? One billionth of a meter
What is the total transmittance through a CR-39 lens that has no additional coatings? 91%
Rx +0.50-0.75x10, what condition does this correct? compound hyperopic astigmatism
Created by: Joaniewhite
 

 



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