Quiz For Soft Lens Problem Solving-Clinical Issues

Multipurpose care systems emphasize

cost

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convenience

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chemical exchange

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saline production

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During the 1990s ___________________ became the modality of choice for the majority of first time wearers.

disposable contact lenses

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cylindrical soft lenses

Correct Incorrect Correct answer

RGP bitorics

Correct Incorrect Correct answer

prism ballast

Correct Incorrect Correct answer

In the 1990s the emergence of silicone hydrogel lenses addressed a major problem not solved by the initial generation of hydrogel disposable lenses. This was:

improved oxygen transmission

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patient compliance

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vertical striae

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heat disinfection

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A grading scale may be used:

to monitor and evaluate changes in the various conditions found in this course

Correct Incorrect Correct answer

to determine the CPA of the contact lens fitter

Correct Incorrect Correct answer

to determine the academic GPA of the contact lens patient

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to determine the amount of silicone in a lens

Correct Incorrect Correct answer

The use of fluorescein:

can be an effective method of monitoring alterations in the corneal integrity secondary to contact lens wear

Correct Incorrect Correct answer

can be used only with GP lenses

Correct Incorrect Correct answer

should always be used with soft lens materials

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is not a good test

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The introduction of _________________ and its ability to be used with a soft lens in the eye has helped to increase the use of fluorescein as a diagnostic tool.

high molecular weight fluorescein (fluorexon)

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low molecular weight fluorescein

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all-in-one soaking solution

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enzymatic cleaner

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The configuration of corneal punctate staining may be used to identify:

a good GP fit

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normal vasculature

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lens movement

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oxygen deprivation

Correct Incorrect Correct answer

__________________________can arise from excessive pressure on the cornea from the contact lens.

mechanical trauma

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edge tear

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solution sensitivity

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desiccation

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____________________of the lens represent the most common areas of bearing.

The center and edge

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The 3 ‘o clock and 9’o clock areas

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The optical center

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The anterior surface

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Isolated areas of staining can occur as the result of:

lens nicks and tears

Correct Incorrect Correct answer

solution sensitivity

Correct Incorrect Correct answer

fluorescein evaluation

Correct Incorrect Correct answer

limbal peripheral dessication

Correct Incorrect Correct answer

_____________________may be secondary to a foreign body stain.

linear corneal staining

Correct Incorrect Correct answer

solution sensitivity staining

Correct Incorrect Correct answer

lens nicks and tears

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fluorescein sensitivity

Correct Incorrect Correct answer

Lens deposits as well as trapped epithelial debris may result in:

Linear corneal staining

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Solution sensitivity staining

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Lens nicks and tears

Correct Incorrect Correct answer

scattered punctate staining

Correct Incorrect Correct answer

____________________________may also be a source of punctate staining in hydrogel lens patients.

lens dehydration

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solution sensitivity

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lens nicks and tears

Correct Incorrect Correct answer

examination with a biomicroscope

Correct Incorrect Correct answer

Incomplete lid closure blinking may result in:

inferior punctuate staining

Correct Incorrect Correct answer

solution sensitivity

Correct Incorrect Correct answer

lens nicks and tears

Correct Incorrect Correct answer

eyelash on the eye

Correct Incorrect Correct answer

________________may develop as the result of solution sensitivity.

Superficial punctate staining

Correct Incorrect Correct answer

Lens nicks and tears

Correct Incorrect Correct answer

Incomplete blinking

Correct Incorrect Correct answer

Corneal edema

Correct Incorrect Correct answer

Clinical signs of corneal edema secondary to hydrogel lens wear:

are apparent only in severe cases

Correct Incorrect Correct answer

occur with almost all soft lens fittings

Correct Incorrect Correct answer

are nothing to be concerned about

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are apparent only in lenses with high minus power

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The use of silicone hydrogel lenses for daily wear or overnight wear has virtually _____________corneal hypoxia in most patients.

doubled

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eliminated

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tripled

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had no effect of

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Epithelial microycysts are a complication found with:

daily wear lenses

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extended wear hydrogel lenses

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both daily wear and extended wear hydrogel lenses

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daily disposable

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The current standard of care for managing patients with hydrogel lens-induced corneal edema is:

to re-fit them with RGP Lenses

Correct Incorrect Correct answer

to re-fit them with keratoconus Lenses

Correct Incorrect Correct answer

to re-fit them in silicone hydrogel lenses

Correct Incorrect Correct answer

this patient is not a good candidate for contact lenses

Correct Incorrect Correct answer

The presence of minimal or no lens movement on the cornea may result in:

corneal edema

Correct Incorrect Correct answer

conjunctival injection

Correct Incorrect Correct answer

mixed astigmatism

Correct Incorrect Correct answer

a torn lens

Correct Incorrect Correct answer

Which of the following causes of conjunctival injection is related to contact lens wear?

Lack of sleep

Correct Incorrect Correct answer

Clean lenses

Correct Incorrect Correct answer

Damaged lenses

Correct Incorrect Correct answer

Well fitted lenses

Correct Incorrect Correct answer

Which of the following causes of conjunctival injection is most likely related to contact lens wear?

allergies

Correct Incorrect Correct answer

lack of sleep

Correct Incorrect Correct answer

solution sensitivity

Correct Incorrect Correct answer

dryness

Correct Incorrect Correct answer

Narrowing a diagnosis of injection to contact related causes is based on:

amount of redness showing

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adequate lens material

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patient understanding

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symptoms

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Immediate injection with burning on insertion is most likely related to:

solution sensitivity

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intraocular abnormalities

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conjunctivitis

Correct Incorrect Correct answer

trauma

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As the wearing time increases over the period of a day with DW or over the period of days with EW, corneal hypoxia, a tight or damaged lens may result in:

conjunctivitis

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a contaminated lens

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generalized injection

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good patient comfort

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CLARE:

is never seen in a soft contact lens patient

Correct Incorrect Correct answer

is natural for all soft lens patients

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is an acceptable condition

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is an anagram for contact lens acute red eye

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The presence of a vascular response to contact lens wear can be caused by:

a good lens fit

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normal wear time

Correct Incorrect Correct answer

proper use of solutions

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excessive wear by the patient

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One of the most effective means of controlling vascularization is through fitting the patient with ________ lenses.

PMMA

Correct Incorrect Correct answer

silicone hydrogel

Correct Incorrect Correct answer

tight fitting

Correct Incorrect Correct answer

bitoric

Correct Incorrect Correct answer

The following symptoms describe which stage of GPC: minimal mucus, moderate itching, slight lens awareness, and slight decrease in vision through the lens

Stage 1

Correct Incorrect Correct answer

Stage 2

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Stage 3

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Stage 4

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GPC is:

never experienced by rigid contact lens wears

Correct Incorrect Correct answer

not serious

Correct Incorrect Correct answer

complicated by the use of makeup

Correct Incorrect Correct answer

a complication affecting both soft and rigid contact lens wearers

Correct Incorrect Correct answer

What is another term for oxygen transmissibility

continuous wear

Correct Incorrect Correct answer

dioptric

Correct Incorrect Correct answer

DK/t

Correct Incorrect Correct answer

hypoxia

Correct Incorrect Correct answer

Following a hypersensitivity reaction to a solution, which of these is a possible palliative measure?

Use of Vaseline in the eye

Correct Incorrect Correct answer

Soaking the lens for two days longer

Correct Incorrect Correct answer

Switching to a generic brand with an unknown preservative

Correct Incorrect Correct answer

Switching to a different preservative

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The placement of a hydrogel lens on the eye will:

result in a decrease in the amount of oxygen available to the cornea

Correct Incorrect Correct answer

cause immediate swelling

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expose the cornea to debris

Correct Incorrect Correct answer

severely compromise the cornea

Correct Incorrect Correct answer

What will enhance the appearance of edema adjacent to an abrasion

sterile saline

Correct Incorrect Correct answer

fluorescein

Correct Incorrect Correct answer

nothing

Correct Incorrect Correct answer

a flashlight

Correct Incorrect Correct answer

Injection of the eye should be:

of no consequence

Correct Incorrect Correct answer

treated as an ocular emergency

Correct Incorrect Correct answer

understood as a normal side effect of contact lens wear

Correct Incorrect Correct answer

treated with sterile saline

Correct Incorrect Correct answer

The cornea is normally:

avascular

Correct Incorrect Correct answer

vascular

Correct Incorrect Correct answer

extremely dry

Correct Incorrect Correct answer

red

Correct Incorrect Correct answer

Which of these factors is a potential initiator of vascular response?

Good oxygenation

Correct Incorrect Correct answer

Well fit lens

Correct Incorrect Correct answer

Metabolic waste

Correct Incorrect Correct answer

Installation of sterile saline

Correct Incorrect Correct answer

What ocular condition was first described in 1974 by Spring

vascular response

Correct Incorrect Correct answer

GPC

Correct Incorrect Correct answer

glaucoma

Correct Incorrect Correct answer

cataracts

Correct Incorrect Correct answer

GPC is often associated with:

the wearing of eyeglases

Correct Incorrect Correct answer

contact lens wear

Correct Incorrect Correct answer

good blink rate

Correct Incorrect Correct answer

exposure to oxygen

Correct Incorrect Correct answer

When should an antihistamine/mast cell stabilizer be used for GPC

once a month

Correct Incorrect Correct answer

once a week

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every hour

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once or twice a day

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Quiz For Soft Lens Problem Solving-Clinical Issues

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