Mod 2

Question 1

What is visual activity?

Answer 1

Acuteness or sharpness of vision

Question 2

What causes astigmatism to have distorted and blurred vision?

Answer 2

The cornea is curved into oval shape

Question 3

What does a ophthalmologist do?

Answer 3

Treats diseases and disorders of the eye

Question 4

What does a optometrist do?

Answer 4

Treats refractive errors of the eye

Question 5

What does an optician do?

Answer 5

Fills prescriptions for eye glasses and contacts

Question 6

What condition can be detected by measuring distance visual acuity?

Answer 6

Myopia

Question 7

What type of patient would use the Snellen Big E chart?

Answer 7

Preschool children

Question 8

What does the top number represent on the Sellen Big E chart?

Answer 8

Distance in feet

Question 9

What does the bottom number represent on the Sellen eye chart?

Answer 9

Distance in which a person with normal vision can see

Question 10

What two conditions can be determined by measuring near visual activity

Answer 10

Hyperopia and presbyopia

Question 11

What is congenital color vision defect?

Answer 11

Color vision deficiency that is inherited

Question 12

What is acquired color visual defect?

Answer 12

Color deficiency that is acquired

Question 13

What is primary colored dots arranged to form a numeral against a background of similar dots for contrasting colors?

Answer 13

Polychromatic plate

Question 14

What is the purpose of eye irrigation?

Answer 14

• to cleanse the eye of foreign particles
• ocular discharge
• relieve of inflammation

Question 15

What is a reason to preform eye instillation?

Answer 15

• treat eye infections

* soothe an irritated eye

Question 16

What is the range of frequency for normal speech?

Answer 16

300 to 4000 Hz (Hertz) at a normal sound intensity

Question 17

What are some conditions that can cause conductive hearing loss?

Answer 17

• obstruction in external ear
• foreign bodies
• swelling
• benign growths
• impacted cerumen

Question 18

What conditions cause sensorineural hearing loss?

Answer 18

• hereditary factors
• degenerative changes
• intense noise exposure
• infectious diseases

Question 19

What info is obtained through audiometry?

Answer 19

How extensive a hearing loss is and what frequencies are involved

Question 20

Why would you preform ear irrigation?

Answer 20

• cleanse external ear

* relieve inflammation

Question 21

Why would you preform ear instillation?

Answer 21

• relieve pain
• combat infection
• cleanse auditory canal

Question 22

How to remove impacted cerumen?

Answer 22

Must be softened for 10-15 mins

Question 23

What is refraction ?

Answer 23

Bending of light rays so they can be focused on the retina

Question 24

Nearsightedness

Answer 24

Myopia

Question 25

Farsightedness

Answer 25

Hyperopia

Question 26

Earwax

Answer 26

Cerumen

Question 27

Instillation

Answer 27

The dropping of liquid into a body cavity

Question 28

Irrigation

Answer 28

Washing it a body canal with a flowing solution

Question 29

Presbyopia

Answer 29

Decrease in elasticity of the lens (with aging)

Question 30

Astigmatism

Answer 30

Refractive error that causes distorted and blurred vision