Optics II Final

Question 1

What are the 5 criteria for designing the most appropriate pair of prescription glasses?

Answer 1

Aesthetics
Comfort
Functional
Precision
Safety

Question 2

What does ANSI stand for?

Answer 2

American National Standards Institute

Question 3

What is ANSI Z80.1?

Answer 3

Code for Dress Eyewear

Question 4

What is ANSI Z87?

Answer 4

Code for Occupational Safety Eyewear

Question 5

What do you need to keep in mind about Greatest Power Meridian?

Answer 5

Solving all tolerance questions using the greatest power as the “sphere” power

Question 6

What are the arms of an IOL called?

Answer 6

Haptic

Question 7

What surgery is the most common eye surgery in the US?

Answer 7

cataract surgery

Question 8

What are the drawbacks of high plus lenses? (8)

Answer 8

1. Heavy
2. Aberrations
3. Astigmatism
4. Not possible to correct astigmatism when over +8.00
5. Sx induces a lot of prism
6. Large magnification
7. Ring scotoma
8. Bug-eye effect

Question 9

What does the lenticular design correct?

Answer 9

1. Aberration effect
2. Prismatic effect
3. Edge thickness problem

Question 10

What is the definition of sagitta of an opthalmic lens?

Answer 10

The perpendicular distance for the vertext of a surface to the plane of its knife-edge thickness

Question 11

What is the three part definition of a base curve?

Answer 11

1. Beginning curve
2. Front curve of lens
3. Flattest curve (if two curves in front)