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Optometry > PEG > Flashcards

PEG Flashcards

1
Q

What is the purpose of direct ophthalmoscopy?

A

To examine the interior structures of the eye, including the retina, optic disc, and blood vessels.

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2
Q

What instrument is used for direct ophthalmoscopy?

A

Ophthalmoscope.

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3
Q

True or False: Direct ophthalmoscopy requires the use of dilating eye drops to examine the eye.

A

True.

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4
Q

What is the recommended distance between the examiner and the patient during direct ophthalmoscopy?

A

Approximately 15 inches.

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5
Q

Fill in the blank: The examiner should ask the patient to look __________ during direct ophthalmoscopy.

A

straight ahead.

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6
Q

What is the role of the lens dial on the ophthalmoscope during direct ophthalmoscopy?

A

To adjust the focus for clarity.

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7
Q

What is the purpose of using a small aperture on the ophthalmoscope during direct ophthalmoscopy?

A

To reduce the amount of light entering the eye, allowing for better visualization of the fundus.

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8
Q

What is the importance of using a red-free filter during direct ophthalmoscopy?

A

To enhance the visualization of blood vessels.

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9
Q

What is the recommended method for examining the macula during direct ophthalmoscopy?

A

Ask the patient to look directly at the light.

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10
Q

True or False: Direct ophthalmoscopy is commonly used for screening and routine eye exams.

A

True.

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11
Q

What is the term for the yellowish spot in the center of the retina that is responsible for sharp central vision?

A

Macula.

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12
Q

What is the appearance of the optic disc during direct ophthalmoscopy in a normal eye?

A

Round or oval, with a distinct margin and a central cup.

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13
Q

What are some common findings that can be identified during direct ophthalmoscopy?

A

Hypertensive retinopathy, diabetic retinopathy, and macular degeneration.

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14
Q

What is the term for the small, round, dark spot in the center of the optic disc?

A

Physiologic cup.

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15
Q

What is the recommended method for examining the optic disc during direct ophthalmoscopy?

A

Ask the patient to look in different directions to visualize all parts of the disc.

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16
Q

What is the term for the area of the retina where blood vessels enter and exit?

A

Optic disc.

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17
Q

True or False: Direct ophthalmoscopy is a quick and non-invasive procedure.

A

True.

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18
Q

What is the purpose of using a larger aperture on the ophthalmoscope during direct ophthalmoscopy?

A

To provide a wider field of view for examination.

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19
Q

What is the term for the blood vessels that can be visualized during direct ophthalmoscopy?

A

Retinal vessels.

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20
Q

What is the recommended method for examining the blood vessels during direct ophthalmoscopy?

A

Follow their course and note any abnormalities.

21
Q

True or False: Direct ophthalmoscopy requires the examiner to be proficient in interpreting findings.

A

True.

22
Q

What is the term for the layer of blood vessels that supply the retina?

A

Choroid.

23
Q

What is the recommended method for examining the choroid during direct ophthalmoscopy?

A

Look for dark pigmentation and blood vessels.

24
Q

What is the term for the light-sensitive layer of tissue lining the inner surface of the eye?

A

Retina.

25
Q

What is ophthalmoscopy magnification used for?

A

To examine the retina and optic nerve in detail.

26
Q

What is the typical magnification range for ophthalmoscopy?

A

Between 15x to 20x.

27
Q

True or False: Ophthalmoscopy magnification allows for a closer look at the blood vessels in the eye.

A

True

28
Q

What is the purpose of using ophthalmoscopy magnification during an eye exam?

A

To detect abnormalities or diseases in the retina and optic nerve.

29
Q

Fill in the blank: Ophthalmoscopy magnification helps in the early detection of ________ in the eye.

A

Abnormalities

30
Q

What part of the eye is specifically examined using ophthalmoscopy magnification?

A

Retina and optic nerve.

31
Q

How does ophthalmoscopy magnification enhance the view of the eye compared to regular examination?

A

It provides a more detailed and magnified view.

32
Q

What type of lens is typically used for ophthalmoscopy magnification?

A

Concave lens.

33
Q

True or False: Ophthalmoscopy magnification is only used in specialized eye clinics.

A

False

34
Q

What is the main advantage of using ophthalmoscopy magnification in eye examinations?

A

Improved visualization of the retina and optic nerve.

35
Q

What is the recommended distance between the ophthalmoscope and the patient’s eye during magnification?

A

1-2 inches.

36
Q

What can ophthalmoscopy magnification help diagnose in the eye?

A

Macular degeneration, diabetic retinopathy, and glaucoma.

37
Q

Fill in the blank: Ophthalmoscopy magnification assists in identifying ________ in the eye.

A

Pathologies

38
Q

What is the typical field of view when using ophthalmoscopy magnification?

A

Around 15 degrees.

39
Q

True or False: Ophthalmoscopy magnification can help monitor the progression of eye diseases.

A

True

40
Q

What is the main limitation of ophthalmoscopy magnification?

A

Limited depth perception.

41
Q

What is the recommended lighting condition for ophthalmoscopy magnification?

A

Dim room with a bright light source.

42
Q

Fill in the blank: Ophthalmoscopy magnification is essential for early detection of ________ diseases.

A

Ocular

43
Q

What is the role of ophthalmoscopy magnification in detecting retinal detachment?

A

It can help visualize the detached retina.

44
Q

True or False: Ophthalmoscopy magnification is mainly used for cosmetic eye procedures.

A

False

45
Q

What is the minimum magnification level needed for detailed examination of the retina?

A

15x

46
Q

What is the main advantage of using a concave lens for ophthalmoscopy magnification?

A

It provides a wider field of view.

47
Q

Fill in the blank: Ophthalmoscopy magnification allows for better visualization of the ________ in the eye.

A

Optic disc

48
Q

How does ophthalmoscopy magnification aid in diagnosing optic nerve diseases?

A

By providing a clearer view of the optic nerve head.

Optometry (4 decks)

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