ABO Practical Exam with complete solutions
Cancelling effect- subtract prism amounts - ANSWER-BU/BU
BD/BD
BI/BO
Powers between 0.00 & +/- 3.00 - ANSWER-Read in 1/8 diopters
.12
.37
.62
.87
Lensometer is also referred to as - ANSWER-Lensmeter, focimeter, vertometer
To focus eyepi...
Powers between 0.00 & +/- 3.00 - ANSWER-Read in 1/8 diopters
.12
.37
.62
.87
Lensometer is also referred to as - ANSWER-Lensmeter, focimeter, vertometer
To focus eyepiece - ANSWER-1) while turned off. Place white sheet of paper against lens stop.
2) turn focus ring all the way counter clockwise,and then back clockwise until sharp.
3) remove paper and turn lensometer on
4) move power drum to high plus, then turn away from you until sharp- should land at 0.00.
To read HORIZONTAL prism - ANSWER-Axis must be @ 180°, if not, transpose rx.
P=hcmxd - ANSWER-Prentice rule
P(prism)
Hcm(amount moved)
D(diopter)
BO/BO - ANSWER-Compounds- add
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Bensuda. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.