CPO CERTIFICATION EXAM 2025/2026 | ACTUAL EXAM WITH
COMPLETE QUESTIONS AND ANSWERS | CERTIFIED POOL
OPERATOR | NATIONAL SWIMMING POOL FOUNDATION
What does the Aqueous Humor do? - CORRECT ANSWERS-Provides nutrients for the lens and
posterior cornea
What is the height of the reading position of a multifocal lens called? - CORRECT ANSWERS-
Seg height
What is interpupillary distance (PD) measured in? - CORRECT ANSWERS-Millimeters
What is the frame height, the most vertical dimension of the lens opening, also known as? -
CORRECT ANSWERS-The B measurement
What is a measure of success of a project; the percent of profit earned on an investment called? -
CORRECT ANSWERS-Return on investment (ROI)
T or F: The most important step in frame selection is that the pt is happy with their choice -
CORRECT ANSWERS-False
What is the distance between the center of the pupils of both eyes called? - CORRECT
ANSWERS-Interpupillary distance (PD)
What increases visual acuity because it reduces internal lens reflections? - CORRECT
ANSWERS-Anti-reflective coatings
What types of frames are actually made of rugged polymers? - CORRECT ANSWERS-Plastic
and Zyl
What lens material is easiest to break? - CORRECT ANSWERS-Glass
, What is a mid-index lens material that is thinner than glass or CR-39, free from distortion and abberation
and able to be used as a safety lens? - CORRECT ANSWERS-Trivex lenses
T or F: Ultraviolet coating protect the eye from damaging UV light indoors and outdoors - CORRECT
ANSWERS-True
The width of the frame should be approximately equal to ___________ - CORRECT ANSWERS-
The width of the patient's face
What is the eyewire? - CORRECT ANSWERS-The part of the frame that surround the lens and
holds it in place
What is the name for the part of the frame that connects the two eyewires? - CORRECT
ANSWERS-Bridge
What is the anterior chamber? - CORRECT ANSWERS-The area inside the eye behind the
cornea and in front of the lens
What may ocular drugs be used for? - CORRECT ANSWERS-Anesthetize, dilate, and treat eye
conditions
What are cycloplegic drugs used for? - CORRECT ANSWERS-To dilate the eyes
What is true of sodium fluorescein? - CORRECT ANSWERS-It is a dye that is impregnated on
dry, paper, filter strips
What are used to treat dry eyes? - CORRECT ANSWERS-Artificial tears and lubricants
What is an example of a topical anesthetic? - CORRECT ANSWERS-Proparacaine
COMPLETE QUESTIONS AND ANSWERS | CERTIFIED POOL
OPERATOR | NATIONAL SWIMMING POOL FOUNDATION
What does the Aqueous Humor do? - CORRECT ANSWERS-Provides nutrients for the lens and
posterior cornea
What is the height of the reading position of a multifocal lens called? - CORRECT ANSWERS-
Seg height
What is interpupillary distance (PD) measured in? - CORRECT ANSWERS-Millimeters
What is the frame height, the most vertical dimension of the lens opening, also known as? -
CORRECT ANSWERS-The B measurement
What is a measure of success of a project; the percent of profit earned on an investment called? -
CORRECT ANSWERS-Return on investment (ROI)
T or F: The most important step in frame selection is that the pt is happy with their choice -
CORRECT ANSWERS-False
What is the distance between the center of the pupils of both eyes called? - CORRECT
ANSWERS-Interpupillary distance (PD)
What increases visual acuity because it reduces internal lens reflections? - CORRECT
ANSWERS-Anti-reflective coatings
What types of frames are actually made of rugged polymers? - CORRECT ANSWERS-Plastic
and Zyl
What lens material is easiest to break? - CORRECT ANSWERS-Glass
, What is a mid-index lens material that is thinner than glass or CR-39, free from distortion and abberation
and able to be used as a safety lens? - CORRECT ANSWERS-Trivex lenses
T or F: Ultraviolet coating protect the eye from damaging UV light indoors and outdoors - CORRECT
ANSWERS-True
The width of the frame should be approximately equal to ___________ - CORRECT ANSWERS-
The width of the patient's face
What is the eyewire? - CORRECT ANSWERS-The part of the frame that surround the lens and
holds it in place
What is the name for the part of the frame that connects the two eyewires? - CORRECT
ANSWERS-Bridge
What is the anterior chamber? - CORRECT ANSWERS-The area inside the eye behind the
cornea and in front of the lens
What may ocular drugs be used for? - CORRECT ANSWERS-Anesthetize, dilate, and treat eye
conditions
What are cycloplegic drugs used for? - CORRECT ANSWERS-To dilate the eyes
What is true of sodium fluorescein? - CORRECT ANSWERS-It is a dye that is impregnated on
dry, paper, filter strips
What are used to treat dry eyes? - CORRECT ANSWERS-Artificial tears and lubricants
What is an example of a topical anesthetic? - CORRECT ANSWERS-Proparacaine
