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Canadian Certified Optometric Assistant > Module 2: Pretesting > Flashcards

Module 2: Pretesting Flashcards

1
Q

PIPEDA

A

Personal Information Protection and Electronic Documents Act

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2
Q

The reason for the visit

A

Cheif complaint

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3
Q

FOLDAR

A

-Frequency
-Onset
-Laterality
-Duration
-Association
-Remediation

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4
Q

Personal medical history

A
  • required to document GP and last exam
    -Medications and route of administration/dose/frequency
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5
Q

-measurement of clarity/sharpness of eyes resolving power
-20 ft of 6 m (mirrored 10ft/3m)
-can be calibrated with projectors
-less than 15ft cause artifially high results

A

Visual aquity

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6
Q

ability to distinguish two separate objects

A

Resolution

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7
Q

-universal acuity chart
-5 x5 originally
-5x4 with 1 unit gap (current)

A

Snellen chart

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8
Q
  • no illumination/ reduces contrast
    -imperative chart angle same as patient
A

Projected VA charts

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9
Q

VA pupil size

A

-large pupils artificially decrease VA results
-small pupils artificially increase VA results
-ideal pupil size 2-5mm
-lighting should be mildly dim

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10
Q

VA procedure

A

-px should not preview
-start with uncorrected distance
-start with OD
- occlude opposite at distance of 1-2cm
-px read until misses 1 or more letters
- change letters before OS
- lastly test both eyes together
-repeat with glasses/rx

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11
Q

Near VA

A

-identical procedure to distance VA
-test distance vary on px habitual working distance
-standard test distance 40cm/16in
- Jaeger type/J type is used instead of Snellen
- adjust room to bright overhead lighting

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12
Q

-VA at 20 feet
- what normally can be seen at 20 feet
- doesn’t mean perfect vision
- indicates clarity or sharpness at distance

A

20/20 vision

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13
Q

-VA chart for children
- px who don’t know the alphabet

A

Allen and Lea symbols

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14
Q
  • px that don’t speak english
A

Landolt C and Tumbling E

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15
Q
  • CDC regulated control of infections/virus/pathogens
  • does not apply to tears (unless visible blood)
A

Universal precautions

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16
Q

Handwashing

A
  • 20 seconds long
  • rinse warm water
    -dry with fresh paper towel
    -alternate use alcohol rubs
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17
Q

Personal Protective Equipment (PPE)

A
  • forms barrier between px
  • sterile gloves with sterile body parts
    -exam gloves with mucous membranes
    -lab coats
    -masks
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18
Q

Masks PPE

A

-surgical masks for talking/coughing/sneezing
- resporators for infected px
-N: not resistant to oil
-R: resistant to oil
-P: oil proof
-filter levels 95% and 99.97%

19
Q

-Critical (objects penetrate skin/mucous)
-Semi-Critical (non-intact skin/intact mucous)
-Noncritical (px doesn’t touch/ intact skin)

A

Spaulding’s classification system

20
Q

-Autoclave
- Hydrogen peroxide 3% (10 mins)
-1/10 bleach ( 10 mins)
-70% ethanol/isopropyl (10 mins)
-chemical germicide (10 mins)
- must be rinsed in water and dried before next use

A

Spaulding’s cleaning system

21
Q
  • use for gonioscpoic CL
    -tonometer bi-prisms
A

Hydrogen peroxide

22
Q

-Hard(PMMA) 3% HP or 78-80 centigrade 10 mins
-Gas Permeable (GP) 3% HP, no heat
-Soft approved HP solution or heat

A

CL disinfection

23
Q

Study page 16 chart

A
24
Q
  • defects are congenital or acquired
    -males more commonly affected 8%
    -females 0.6%
A

Colour vision

25
Q
  • 3 cone types (blue,green,red)
  • trichromatic
A

Normal colour vision

26
Q

-green deficiency
-green/purple
-red/purple

A

Deuteranomly

27
Q

-red deficiency
-red/green
-blue/green

A

Protanomly

28
Q

-Blue deficiency
-blue/green
-yellow/green

A

Tritanomaly

29
Q

can see two primary cones

A

Dichromatic

30
Q

Grey scale colour vision

A

Achromatopsia

31
Q

-pseudo-isochromatic plates
-only red/green issues
-cant prove trichromat/dichromate
-preferred Macbeth Illuminat C lamp
-Alt. daylight/fluorescent
-dont use tungsten

A

Ishihara colour test

32
Q
  • a dichotomous test
    -tests red/green and yellow/blue
    -prove acquired colour issues
  • test monocularly
A

Farnsworth D-15

33
Q
  • glaucoma
    -macular conditions
  • diabetic retinopathy
  • medication toxicity
A

Acquired colour vision causes

34
Q
  • depth perception
    -stereopsis sensitivity
    -learned monocular clues
A

Stereoacuity

35
Q

measured in seconds of arc

A

Stereopsis Sensitivity

36
Q

-titmus stereofly
-randot stereo
- use 3D glasses with/Rx
- test distance 16in/4cm

A

Stereopsis tests

37
Q

-ability to distinguish objects from background

A

Contrast sensitivity

38
Q

1)Pelli Robson (20/60 VA chart)
-2.0 score = normal
-below 1.5 = impairment
2) Vistech
-6000 (near/reading 16in/40cm)
-6500 (distance 3m-10ft)

A

Contrast tests

39
Q

-cataracts
-small pupil size
-improper px position
-instrument myopia (aware of near even with optical inifinity)

A

Autorefraction errors

40
Q

-measures 3mm area of cornea
-length of the radius of curvature in mm
- dioptic power of the cornea
- “k-readings”
- high reading 46.00D = Steep curve
-lower reading 42.25 = flatter curve
-used in CL fittings
- managaing keratoconus

A

Keratometry

41
Q

-age = higher when older
-forced lid closure/rubbing
-low blood pressure = low IOP
-corneal thickness (thicker)=overestimated
-time of day (low at night, high in morning)

A

Factors affecting IOP

42
Q

1) systolic pressure (top #)= constricting
2)diastolic= at rest
-2mm from elbow
-pump until 20mm, palpate, 20mm more
-onset beats = systolic
-cessation sounds = diastolic

A

Blood pressure testing

43
Q

Review testing instructions

A

Canadian Certified Optometric Assistant (9 decks)

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