Optician Practice Test

Take this free practice test to see how prepared you are for an optician certification exam.

1.	To what does a ptosis crutch give support?
	Lower lid
	Nasal bridge
	Nose pads
	Upper lid

2.	A lens’ focal length can be altered by:
	Changing the curvature of one surface
	Coating the surface
	Making the lens bigger
	Making the lens smaller

3.	Which instrument measures vertex distance?
	Distometer
	Lensometer
	Polariscope
	Vertometer

4.	What controls the amount of light that enters the eye?
	Crystalline Lens
	Fovea
	Iris
	Pupil

5.	Which word is used to describe light’s changing direction as it passes from one medium to another?
	Diffusion
	Reflection
	Refraction
	Retraction

6.	Frame materials are available in which two forms?
	Hard and soft
	Metal and plastic
	Rigid and flexible
	Round and square

7.	Meniscus, equiconcave and flat concave are types of:
	Astigmatic lenses
	Minus lenses
	Plus lenses
	Spherocylinder lenses

8.	What is the term used to describe the eye’s tendency to turn from its normal position?
	Exophoria
	Exotropia
	Phoria
	Tropia

9.	What is the refractive condition in which light focuses directly on the retina?
	Emmetropia
	Hyperopia
	Myopia
	Presbyopia

10.	What kind of lens has one convex and one concave surface?
	Biconcave
	Biconvex
	Meniscus
	Plano-convex

11.	What material has the most favorable optical properties?
	Crown glass
	Plastic
	Polycarbonate
	Trivex

12.	What is the best lens treatment to reduce water and road surface glare?
	AR
	Dark tint
	Photochromic
	Polarized

13.	Which private agency is responsible for establishing commercial and industry standards?
	ANSI
	ASCII
	ASTM
	None of the above

14.	Which frame adjustment lowers the front of the frame?
	Bending the pad arms down
	Bringing the pads closer together
	More pantoscopic tilt
	Spreading pads further apart

15.	The hard resin material used in plastic lenses is known as:
	Cellulose acetate
	CR-39
	CR-49
	PMMA

16.	How is multifocal height usually measured?
	From the lower edge of the lens
	From the upper edge of the lens
	From the lower edge of the frame
	From the upper edge of the frame

17.	Aphakia is:
	The absence of accommodation
	The absence of the crystalline lens
	The presence of a cataract
	The presence of a refractive error

18.	Which of the following is an advantage to a titanium frame?
	Corrosion resistant
	Easy to adjust
	Returns to original shape after bending
	None of the above

19.	The cornea’s index of refraction is:
	1.31
	1.37
	1.47
	1.51

20.	Which term is used to describe the outward inclination of the bottom of a framed lens?
	Pantoscopic
	Periscopic
	Retractive
	Retroscopic

21.	Which lens characteristic corrects astigmatism?
	Cylinder power
	Minus power
	Plus power
	Prism power

22.	A patient with astigmatism has a ________ cornea.
	Clear
	Cloudy
	Misshapen
	Round

23.	A polariscope is used to detect internal lens stress.
	True
	False

24.	A monocular PD is given as one number.
	True
	False

25.	Axis is the notation of power on a lens.
	True
	False

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