Random Information

Question 1

Measuring IOP is also called

Answer 1

Tonometry

Question 2

The higher the IOP of an eye, the _____ the eye.

Answer 2

Harder

Question 3

Applanation tonometry displaces less than _____ of aqueous.

Answer 3

0.5 microliters

Question 4

When recording IOP, the reading on the Goldmann applanation tonometer scale should be multiplied by _____.

Answer 4

Ten

Question 5

While assessing visula acuity, the assistany notes the patient consistently misses the optotypes on the temporal side of the chart, indicating a possible _____.

Answer 5

Visual field defect

Question 6

In visual acuity assessment, the brightness acuity tester (BAT) is used to evaluate _____ when there are opacities in the ocular media.

Answer 6

Glare

Question 7

In patients with nystagmus, visual acuity often improves dramatically when vision is assessed _____.

Answer 7

binocularly

Question 8

At what distance are adult near visual acuity charts designed to be read?

Answer 8

14-16 inches

Question 9

Normal visual acuity in a two-month old infant may be estimated by?

Answer 9

Fixation (follow at 3 months)

Question 10

Blockages of the central retinal artery by an embolus, which stops blood flow and causes acute loss of vision and a cherry red spot in the retina, is termed?

Answer 10

CRAO (Central retinal artery occlusion)

Question 11

What is the visual symptom, and its cause, often experienced by diabetic patients during episodes of increased blood sugar?

Answer 11

Blurred vision caused by temporary myopia or hyperopia due to changes in the refractive index

Question 12

What instructions would be given over the phone to a patient who had splashed a chemical into the eyes?

Answer 12

Immediately flush the eyes with water for 15-20 minutes and then report to the ER or ophthalmologist’s office

Question 13

The most common type of glaucoma is ______.

Answer 13

POAG (Primary open angle glaucoma)

Question 14

Aqueous drains out of the eye through this net-like structure.

Answer 14

Trabecular meshwork

Question 15

What is the name of the instrument used to measure extension of the anterior surface of the cornea beyond the lateral orbital rim?

Answer 15

Exopthalmometer

Question 16

Name at least one example of a glare testing device.

Answer 16

TVA, BAT (Brightness acuity test), or Eye Con

Question 17

Name the two measurements required to determine the dioptric power of the IOL.

Answer 17

A-Scan (Axial length of the eye) and keratometry (corneal curvature)

Question 18

When preforming A-Scan biometry, a 1mm error in axial length may result in a _____ diopter calculated IOL power error.

Answer 18

Three

Question 19

What is the term for the amount of time it takes for dry spots to form on the cornea when the eye is in a staring position?

Answer 19

BUT (Break up time)

Question 20

Which ocular condition is commonly associated with Sjogren’s Syndrome?

Answer 20

Dry eyes (dry mouth is another finding in Sjogren’s syndrome)

Question 21

Which systemic disease can cause temporary fluctuations in refractive errors?

Answer 21

Diabetes mellitus (DM)

Question 22

Name the virus that causes a dendritic pattern of keratitis.

Answer 22

Herpes simplex

Question 23

What is the ideal position for a patient who feels faint?

Answer 23

Head lower than the heart

Question 24

Where do you check pulse on an adult CPR patient?

Answer 24

Neck (carotid artery)

Question 25

Why is it important to specifically ask a patient about the medications that they are taking?

Answer 25

Certain medications can affect the eyes

Question 26

What is the proper response to a patient's request from the ophthalmic tech for medical advice or a diagnosis?

Answer 26

Refer the patient to the ophthalmologist

Question 27

What is the term used for the reason for the patient's visit?

Answer 27

Chief complaint

Question 28

What elements are important in social history taking?

Answer 28

Smoking, alcohol and drug use

Question 29

_____ _____ is a red dye useful in evaluating the integrity of the corneal epithelium.

Answer 29

Rose bengal

Question 30

Name the tear deficiency test which uses strips of filter paper into the lower fornix.

Answer 30

Schirmer test

Question 31

In terms of lens thickness, the greater the refractive index, the _____ the lens.

Answer 31

Thinner

Question 32

The distance from the center of the pupil of one eye to the center of the pupil of the other eye is termed _____?

Answer 32

Interpupillary distance

Question 33

What is measured to obtain a monocular measurement of the IPD (interpupillary distance)?

Answer 33

The distance from the bridge of the nose to the center of the pupil

Question 34

If dust accumulates on the mirror of the slit lamp, the technician may clean it by using what cleaning methods?

Answer 34

A lint free cloth, a lens brush, or a blast of air

Question 35

Who should repair and maintain equipment such as a laser?

Answer 35

A qualified service technician

Question 36

Which accessories are used to check the calibration of an opthalmometer/keratometer?

Answer 36

Three test balls made of steel, also called "Lensco Meter"

Question 37

What should be used to clean the accessible lenses of a phoropter?

Answer 37

Photographic lens cleaner and lens tissue

Question 38

What size letters (optotypes) are typically used to calibrate visual acuity projectors?

Answer 38

20/200

Question 39

The absence of a lens in an eye is called _____.

Answer 39

Aphakia

Question 40

The presence of an IOL is called

Answer 40

Pseudophakia

Question 41

_____ is a chronic inflammation of the eye lid margin.

Answer 41

Blepharitis

Question 42

Name the retinal receptors that function best in dim lighting, number about 125 million and are found in the periphery of the retina.

Answer 42

Rods

Question 43

Name the retinal receptors that are responsible for color vision, number about 6 million and are found in the macula.

Answer 43

Cones

Question 44

What normally determines the strength of an add power for near correction?

Answer 44

The age of the patient

Question 45

What is the distance from the back surface of a lens to the front surface of the eye called?

Answer 45

Vertex distance

Question 46

What is the term used when there is a difference in pupil size?

Answer 46

Anisocoria

Question 47

What is the term for the spasmodic, rhythmic dilating, and contracting pupillary movements during pupil function testing?

Answer 47

Hippus

Question 48

What is the name of the test used for detecting a relative afferent pupillary defect?

Answer 48

Swinging flashlight test

Question 49

Which muscle of the iris constricts in bright light?

Answer 49

Sphincter

Question 50

What is pupil dilation termed?

Answer 50

Mydriasis