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Optometry Practice 2 > Optometry Practice 2 > Flashcards

Optometry Practice 2 Flashcards

Self-test about basic knowledge in ophthalmoscopy.

1
Q

An examination of the back part of the eye, which includes the retina, optic disc, choroid, and blood vessels.

A

Ophthalmoscopy

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2
Q

Another term for ophthalmoscopy.

A

Fundoscopy, Funduscopy

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3
Q

The direct ophthalmoscope can magnify upto about how much?

A

15x

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4
Q

In the direct ophthalmoscope, the slit is used for what?

A

For gauging convexity or concavity of a retinal lesion

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5
Q

Give 1 ophthalmic drug we use as optometrists to dilate the eyes.

A

Tropicamide or Phenylephrine

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6
Q

Medical term for the dilation of the pupils.

A

Mydriasis

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7
Q

What is the normal cup/disc ratio.

A

1:3

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8
Q

When checking the right eye using the indirect ophthalmoscope, where will you find the optic disc?

A

Temporal side

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9
Q

When checking for the macula using the direct ophthalmoscope, where will you tell your patient to look?

A

look at the light

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10
Q

The lens used for indirect ophthalmocope.

A

condensing lens

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11
Q

If the patient has cataracts, which type of ophthalmoscope will you use to see the fundus better?

A

indirect ophthalmoscope

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12
Q

A technique to obtain an objective measurement of the refractive error of a patient’s eyes.

A

Retinoscopy

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13
Q

What type of drugs are used in wet retinoscopy?

A

cycloplegic drugs

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14
Q

What are the two main factors affecting the movement of the reflex?

A

EOR of the patient and the working distance

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15
Q

When the reflex is neutral during retinoscopy, what lens will you add?

A

There is no need to add any lenses.

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16
Q

When using the Welch Allyn ophthalmoscope, what will you use to get a concave effect? Sleeve up or sleeve down?

A

Sleeve up

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17
Q

If your working distance in retinoscopy is at 20inches, what motion will you see inside the patient’s eye if the refractive error is +1.00Dsph?

A

with motion

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18
Q

What will be the static retinoscopy gross finding if the refractive error is +1.00Dsph with a working distance of 20inches?

A

+3.00Dsph

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19
Q

If your working distance during static reti is at 20inches, what will be the refractive error of the patient if the motion is against movement?

A

Myopia

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20
Q

If your working distance during static reti is at 20inches and you see no motion, what will be the Net finding?

A

-2.00Dsph

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21
Q

How will you convert a cross cylinder into a sphero cynlinder?

A

Copy-Subtract-Copy

22
Q

How will you transpose a plus cylinder into a minus cylinder?

A

Add-Reverse-Rotate

23
Q

When you ask the patient to look at a near target, what do you call this type of retinoscopy?

A

Dynamic

24
Q

If the patient has astigmatism, what reflex will you see?

A

Scissors movement, skew reflex

25
Q

Convert -1.50Dsph = -0.50Dcyl x 90 into plus cylinder form.

A

-2.00Dsph = +0.50Dcyl x 180

26
Q

The keratometer is used to measure which part of the eye?

A

central anterior corneal surface

27
Q

The keratometer is used to measure how much of the corneal surface?

A

about 3mm of the central cornea

28
Q

What will you see inside the keratometer if the patient has dry eyes?

A

broken circles

29
Q

Which part of the keratometer will you adjust to fuse the minus signs?

A

vertical drum

30
Q

How will you convert the radius in diopters?

A

(0.3375 / D) x 1000

31
Q

How will you get the the corneal astigmatism using the keratometer?

A

Flat reading minus steep reading

32
Q

What is the physiological astigmatism?

A

-0.50cyl x 90

33
Q

A plus cylinder ATR axis is along what meridian?

A

horizontal meridian

34
Q

Cornea is a __________ refracting surface. Concave or convex?

A

convex

35
Q

When the principal meridians are not perpendicular to each other, this is what type of astigmatism?

A

Irregular

36
Q

The test used to measure the pressure inside the eye.

A

Tonometry

37
Q

Increased intraocular pressure without other symptoms of glaucoma.

A

Ocular hypertension

38
Q

In this type of tonometer, the applanating force is a column of air which is emitted with gradually increasing intensity.

A

Air-puff Tonometer

39
Q

This type of tonometer uses a split-image prism such that the image of the tear meniscus is divided into a superior and inferior arc.

A

Goldmann Applanation Tonometer

40
Q

What is the normal IOP?

A

10-20mmHg

41
Q

This type of slit lamp technique utilizes the reflection of light off of the back of the eye to back lighting structures.

A

retro-illumination

42
Q

This dye is placed onto the outer surface of the eye for corneal staining.

A

Fluoresceine dye

43
Q

True or false. We can use the fluorescein dye to check the fitting of a soft contact lens.

A

False. The fluoresceine dye will stain the soft contact lens.

44
Q

Which technique will you perform to check for the endothelium?

A

Specular reflection

45
Q

This technique is particularly suitable for the detection of opacities of the cornea.

A

Sclerotic Scatter

46
Q

Is a technique used to determine the size of the anterior chamber angle of the eye.

A

Van Herrick

47
Q

This slit lamp auxillary lens is used during slit lamp direct ophthalmoscopy. This provides a stereoscopic view of the retina.

A

Hruby Lens

48
Q

This technique provides an overall view of the external eye and its appendages.

A

Diffuse illumination

49
Q

This technique allows examination of the iris appearance and condition by extreme oblique illumination with the observation system directly in front of the eye being examined.

A

Tangential illumination

50
Q

This filter is used to illuminate the eye following the application of the fluorescein dye.

A

Cobalt

Optometry Practice 2 (1 decks)

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