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COA > COA flashcards > Flashcards

COA flashcards

1
Q

The ability of human vision to discern shapes by their relative lightness and darkness

A

Contrast Sensitivity

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2
Q

The diffusion of oxygen through a contact lens material

A

DK Value

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3
Q

What are the two measurements required for a contact lens fitting?

A

Refraction and K-Reading (Keratometry)

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4
Q

Insufficient oxygen to the cornea often caused by the over wearing of contact lenses

A

Hypoxis Opthalmia

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5
Q

Find the spherical equivalent of
-1.00-0.50x180

A

-1.25 sphere
The spherical equivalent is found by taking the sphere and adding one half of the cylinder.

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6
Q

What is the adequate way of measuring the limbus-to-limbus value

A

A millimeter rule

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7
Q

Removal of the vitreous and then placing a gas or oil bubble to hold the shape of the eye

A

Vitrectomy

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8
Q

The use of a laser to coagulate blood and stop retinal bleeding

A

Photocoagulation

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9
Q

A laser surgery that makes a hole in the iris to lower IOP

A

Iridotomy

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10
Q

A laser surgery to make a hole in the limbus creating a new pathway for fluid to reduce IOP

A

Trabeculectomy

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11
Q

When a dying part of the cornea is replaced with a donor cornea

A

Keratoplasty/ Corneal Graft/ Corneal Transplant

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12
Q

Removal of tissue that has grown over or within the layers of the cornea

A

Pterygium Excision

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13
Q

The smallest object resolvable by the eye at a given distance

A

Visual Acuity

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14
Q

The angle that an object’s outermost rays subtend on the retina and is measured by degrees or minutes

A

Visual angle

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15
Q

Letters, numbers, pictures, etc. used on standard visual acuity charts

A

Optotypes

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16
Q

Death of the retina

A

Diabetic Retinopathy

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17
Q

The growth of new blood vessels

A

This is called proliferation, those with PDR (proliferative diabetic retinopathy) are typically given Anti-VEGF (vascular endothelic growth factor) injection or laser treatments are used to stop the overgrowth of new blood vessels.

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18
Q

Blood in the Vitreous cavity

A

Vitreous Hemorrhage

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19
Q

The junction of the corneal and conjunctival epithelia where the epithelium gradually becomes thicker towards the sclera

A

Limbus

20
Q

The tissue that forms a fluid reservoir after a trabectome surgery

A

Bleb

21
Q

Death of the optic nerve

A

Glaucoma which can be associated w/ high IOP. Glaucoma is most commonly treated w/ pressure lowering gtts.

22
Q

The three common causes of eye infection

A

1.Bacterial
2.Fungal
3.Viral

23
Q

Diagnostic testing to create 3D digital images of the optic nerve and the retina

A

Tomography

24
Q

An eye care professional who routinely fills eye glass prescriptions is the…

A

Optician

25
Q

A specialized member of the eye care team that evaluates double vision

A

an Orthopist

26
Q

The white tissue surrounding the cornea and forming the main structural component of the globe is the…

A

Sclera

27
Q

The tough transparent membrane that provides about two-thirds of the eye’s focusing power is the…

A

Cornea

28
Q

The membrane that lines the inner eyelid is the…

A

Palpebral Conjunctiva

29
Q

The medial rectus muscle rotates the eye…

A

inwards towards the nose

30
Q

The diagnostic testing of the pupil to detect a relative afferent pupillary defect is called…

A

The swinging Flashlight Test

31
Q

The main reason for the patients visit is the…

A

Chief Complaint

32
Q

What are the elements of social history taking?

A
  1. Smoking status
  2. Alcohol use
  3. Drug use
33
Q

Prior use of topical ocular pharmaceutical agents is part of a patients…

A

Past ocular history

34
Q

Pertinent family history should include which relatives?

A
  1. Parents
  2. Grandparents
  3. Biological siblings
35
Q

A patient describing an experience of getting hives after taking sulfa drugs is providing information about…

A

an allergic reaction or drug allergy

36
Q

The spasmodic, rhythmic, dilating, and contracting pupillary movements during pupillary function testing is called…

A

Hippus

37
Q

What is the term for a difference in pupil size?

A

Anisocoria

38
Q

The measurement of pupillary diameters is called…

A

Pupillometry

39
Q

Which muscle of the iris constricts in bright light?

A

Sphincter muscle

40
Q

What is the term for the dilation of the pupil?

A

Mydriasis

41
Q

What are the nine components of the ophthalmic history?

A
  1. Chief Complaint
  2. Present Illness
  3. Past Ocular History
  4. Ocular Medications
  5. Systemic Medications
  6. Allergies
  7. Social History
  8. Family History
  9. General Medical and Surgical History
42
Q

What does PERRLA stand for?

A

Pupils equally round and reactive to light and accommodation.

43
Q

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

A

Rods

44
Q

The term for bulging of the eyes is?

A

Exophthalmos

45
Q
A

COA (1 decks)

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