More "Eye-Q" Questions
Our office has many kinds of special instruments which are needed for comprehensive examinations. Some are used commonly, others only for very specific circumstances.
Try this little multiple choice test to see how many you know:
1. A phoropter is used to:
a. measure eyelid movement
b. determine the pressure inside the eye
c. determine the prescription for glasses
d. record tracking movements
2. A retinascope:
a. permits a detailed examination of the retina
b. determines nearsightedness, farsightedness and /or astigmatism
c. measures the curvature of the retina
d. allows a view of the structures behind the eye
3. An exophthalmometer:
a. measures the space between the eyes
b. measures maximum horizontal eye movements
c. records internal pressure changes in the eye
d. measures the degree of protrusion of the eyes
4. A topographic analyzer:
a. evaluates the surface contour of the cornea
b. evaluates the internal contour of the retina
c. records the blood vessel pattern on the surface of the eye
d. scans the eye surface for fluid analysis
5. An ophthalmoscope:
a. is used to examine the retina
b. is used to examine the cornea
c. is used to measure the pressure inside the eye
d. is used to determine eyeglass prescriptions
6. A tonometer:
a. is used to measure the pressure inside the eye
b. is used to measure the distance between the eyes
c. determines the muscle tone of the eyelids
d. is used to meassure crossing of the eyes
7. An ophthalmodynamometer:
a. is used to measure tracking speed of the eyes
b. is used to measure the blood pressure in the central retinal artery
c. is used to determine corneal sensitivity
d. records electrical discharges within the retina
8. A slit lamp:
a. measures the space between the upper and lower eyelids
b. measures the image size on the retina
c. is used to determine sharpness of vision ("visual acuity")
d. is used to examine all the components of the eye
9. A pachymeter:
a. measures the thickness of the retina
b. measures the thickness of the cornea
c. measures the thickness of the iris
d. measures the thickness of the lens
10. A keratometer:
a. measures the length of the eyeball
b. measures the strength of the sclera
c. measures the elasticity of the eye muscles
d. measures the curvature of the cornea
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