Certified Ophthalmic Assistant (COA) Exam 2 – Practice Questions and Answers
Study Guide
A-SCAN biometry measurements are essential before what type of surgery? - ANS ✔✔Cataract
A-SCAN biometry is used to measure the? - ANS ✔✔Axial length of the eye
A-SCAN biometry and keratometry readings are used to determine? - ANS ✔✔The power
needed for an intraocular lens
What organization certifies ophthalmic medical personnel? - ANS ✔✔JCAHPO
Successful completion of an independent study course, as well as supervised on-the-job training
allows ophthalmic medical personnel to seek entry-level certification as a ______? - ANS
✔✔COA
The primary role of skilled ophthalmic medical personnel in a practice is? - ANS ✔✔Evaluation
and collection of data
Which eyecare personnel specialized in fitting spectacles? - ANS ✔✔Optician
which eyecare personnel specialized with eye movement and the extraocular muscles? - ANS
✔✔Orthoptist
What test illuminates the screen with a filter that is red on one side and green on the other? -
ANS ✔✔Duochrome
, The distance from the cornea to the back surface of the spectacle lens is the? - ANS ✔✔Vertex
distance
A patient's prescription is -2.50 +1.00 X 175. What is the minus cylinder transpisition? - ANS
✔✔-1.50 -1.00 X 85
The spherical equivalent of +2.00 +5.00 X 180 is? - ANS ✔✔+4.50
A lens with a focal length of 2 meters has a power of? - ANS ✔✔0.5 D
What part of the spectacles connects the two lenses? - ANS ✔✔Bridge
The measurement used to determine the distance between the optical centers of spectacle
lenses is the? - ANS ✔✔Pupillary distance
The optical centers of spectacle lenses must be properly aligned in order to avoid this effect? -
ANS ✔✔Prismatic
Which eye drop paralyzes accommodation and thereby allows all of the hyperopia to be
uncovered? - ANS ✔✔Cycloplegic
Retinoscopy is an example of what type of refractometry - ANS ✔✔Objective
Bending of light is called? - ANS ✔✔Refraction
The area between the two focal points of a spherocylindrical lens is called the conoid of? - ANS
✔✔Sturm
Study Guide
A-SCAN biometry measurements are essential before what type of surgery? - ANS ✔✔Cataract
A-SCAN biometry is used to measure the? - ANS ✔✔Axial length of the eye
A-SCAN biometry and keratometry readings are used to determine? - ANS ✔✔The power
needed for an intraocular lens
What organization certifies ophthalmic medical personnel? - ANS ✔✔JCAHPO
Successful completion of an independent study course, as well as supervised on-the-job training
allows ophthalmic medical personnel to seek entry-level certification as a ______? - ANS
✔✔COA
The primary role of skilled ophthalmic medical personnel in a practice is? - ANS ✔✔Evaluation
and collection of data
Which eyecare personnel specialized in fitting spectacles? - ANS ✔✔Optician
which eyecare personnel specialized with eye movement and the extraocular muscles? - ANS
✔✔Orthoptist
What test illuminates the screen with a filter that is red on one side and green on the other? -
ANS ✔✔Duochrome
, The distance from the cornea to the back surface of the spectacle lens is the? - ANS ✔✔Vertex
distance
A patient's prescription is -2.50 +1.00 X 175. What is the minus cylinder transpisition? - ANS
✔✔-1.50 -1.00 X 85
The spherical equivalent of +2.00 +5.00 X 180 is? - ANS ✔✔+4.50
A lens with a focal length of 2 meters has a power of? - ANS ✔✔0.5 D
What part of the spectacles connects the two lenses? - ANS ✔✔Bridge
The measurement used to determine the distance between the optical centers of spectacle
lenses is the? - ANS ✔✔Pupillary distance
The optical centers of spectacle lenses must be properly aligned in order to avoid this effect? -
ANS ✔✔Prismatic
Which eye drop paralyzes accommodation and thereby allows all of the hyperopia to be
uncovered? - ANS ✔✔Cycloplegic
Retinoscopy is an example of what type of refractometry - ANS ✔✔Objective
Bending of light is called? - ANS ✔✔Refraction
The area between the two focal points of a spherocylindrical lens is called the conoid of? - ANS
✔✔Sturm
