CL Quiz 1A

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What is the effect of sleeping with contact lenses (CL) at night, according to the text?

Reduced lack of oxygen and less swelling

No change in oxygen levels or swelling

Improved vision and reduced redness

Increased lack of oxygen and more swelling (correct)

Why are high spectacle prescriptions challenging to fit with lenses?

They result in dry eyes at the end of the day

They cannot correct distorted retinal images

They are incompatible with contact lenses

They cause excessive magnification or minification (correct)

What is the FDA classification of contact lenses (CL), as mentioned in the text?

Class 2 (correct)

Class 1

Class 4

Class 3

Why should contact lenses not be exposed to tap water or lake water?

To avoid introducing germs to the eye Signup and view all the answers

What does a pupil diameter smaller than the contact lens (CL) size lead to, especially in dim light?

Blur at night Signup and view all the answers

What is considered a wet eye based on tear breakup time (TBUT)?

Greater than 13 seconds Signup and view all the answers

What is the average assumed vertex distance for corneal curvature?

11-12 mm Signup and view all the answers

What condition makes a patient unsuitable for cosmetic contact lenses?

Extreme dry eye Signup and view all the answers

How does pregnancy affect corneal sensitivity and contact lens wearing?

Increases corneal sensitivity and discomfort with prior CL Signup and view all the answers

Which type of disease causes incomplete closure of the lids and contributes to dryness in the eye?

~Thyroid disorders Signup and view all the answers

What is the effect of taking anti-histamines while wearing contact lenses?

To dry out mucus production and may cause dry eyes with CL Signup and view all the answers

Why are cosmetic lenses not recommended for patients with recurrent epithelial basement layer disruption?

Result in microvilli loss and worsen dryness symptoms Signup and view all the answers

What is the main benefit of contact lenses compared to spectacles?

Improved peripheral vision Signup and view all the answers

Why wouldn't a patient with severe dry eye be a good candidate for contact lenses?

The benefits do not outweigh the risks Signup and view all the answers

What is the most appropriate recommendation for minimizing the risk of wearing contact lenses?

Educating patients on appropriate contact lens care Signup and view all the answers

Why is not everyone a candidate for LASIK surgery?

Potential for recurrent corneal erosions post-surgery Signup and view all the answers

What is the main advantage of wearing daily disposable contact lenses?

Enhanced comfort throughout the day Signup and view all the answers

Why is it important to replace the contact lens case every 3 months?

To minimize the risk of contamination Signup and view all the answers

What is a potential consequence of sleeping with contact lenses in terms of oxygen delivery to the eye?

Reduced oxygen delivery to the cornea Signup and view all the answers

Why is it important to assess ocular tissue when considering a patient for contact lens use?

To evaluate if the patient is a good candidate for contact lenses Signup and view all the answers

What type of wear involves wearing contact lenses for 30 consecutive days?

Continuous wear Signup and view all the answers

What wear schedule is recommended for the healthiest option to minimize exposure to debris from previous days?

Dailies wear Signup and view all the answers

What risk factor is associated with abusing contact lenses by not replacing them regularly?

Increased risk of inflammation and infections Signup and view all the answers

What can soft contact lenses induce if worn for extended periods?

Increased risk of corneal swelling Signup and view all the answers

What is the consequence of sleeping with contact lenses at night, according to the text?

Decreased oxygen delivery to the eye Signup and view all the answers

What is the main advantage of wearing silicone hydrogel contact lenses?

Higher oxygen permeability Signup and view all the answers

Why are patients with extreme dry eye not suitable candidates for cosmetic contact lenses?

Symptoms worsen with cosmetic lens wear Signup and view all the answers

How does pregnancy affect contact lens wearing?

Uncomfortable wearing of prior lenses Signup and view all the answers

Why should contact lenses not be exposed to tap water or lake water?

Potential introduction of germs to the eye Signup and view all the answers

What is the effect of taking anti-histamines while wearing contact lenses?

Reduced mucus production Signup and view all the answers

What type of condition can prevent patients from being suitable for cosmetic contact lenses?

All of the above Signup and view all the answers

What is the main reason a patient might choose to wear contact lenses for cosmetic purposes, despite the associated risks?

To have a wider visual field compared to wearing spectacles Signup and view all the answers

Why might a patient with severe dry eye not be a good candidate for contact lenses?

The patient might be at a higher risk of ocular surface complications Signup and view all the answers

What is the recommended wear schedule for minimizing exposure to debris from previous days when wearing contact lenses?

Dailies wear Signup and view all the answers

Why is it important to replace the contact lens case every 3 months?

To reduce the risk of contamination from the outside and spread to the contact lenses Signup and view all the answers

What is a potential consequence of sleeping with contact lenses in terms of oxygen delivery to the eye?

Reduction in oxygen delivery, leading to corneal swelling Signup and view all the answers

What type of wear schedule involves wearing contact lenses for 6-7 consecutive days before taking them off?

Extended wear Signup and view all the answers

What is a potential consequence of abusing contact lenses by not replacing them regularly?

Putting the ocular surface at risk and increasing the chance of ocular complications Signup and view all the answers

What is a reason some patients might be unsuitable candidates for LASIK surgery?

Risk of recurrent corneal erosions post surgery Signup and view all the answers

What is considered a dry eye based on tear breakup time (TBUT)?

Having a TBUT of less than 9 seconds Signup and view all the answers

What type of disease causes incomplete closure of the lids and contributes to dryness in the eye?

Thyroid Disease Signup and view all the answers

What is one potential effect of wearing soft contact lenses for extended periods?

The patient may not notice corneal swelling due to reduced oxygen delivery at night Signup and view all the answers

CL Quiz 1A

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Questions and Answers

What is the effect of sleeping with contact lenses (CL) at night, according to the text?

Why are high spectacle prescriptions challenging to fit with lenses?

What is the FDA classification of contact lenses (CL), as mentioned in the text?

Why should contact lenses not be exposed to tap water or lake water?

What does a pupil diameter smaller than the contact lens (CL) size lead to, especially in dim light?

What is considered a wet eye based on tear breakup time (TBUT)?

What is the average assumed vertex distance for corneal curvature?

What condition makes a patient unsuitable for cosmetic contact lenses?

How does pregnancy affect corneal sensitivity and contact lens wearing?

Which type of disease causes incomplete closure of the lids and contributes to dryness in the eye?

What is the effect of taking anti-histamines while wearing contact lenses?

Why are cosmetic lenses not recommended for patients with recurrent epithelial basement layer disruption?

What is the main benefit of contact lenses compared to spectacles?

Why wouldn't a patient with severe dry eye be a good candidate for contact lenses?

What is the most appropriate recommendation for minimizing the risk of wearing contact lenses?

Why is not everyone a candidate for LASIK surgery?

What is the main advantage of wearing daily disposable contact lenses?

Why is it important to replace the contact lens case every 3 months?

What is a potential consequence of sleeping with contact lenses in terms of oxygen delivery to the eye?

Why is it important to assess ocular tissue when considering a patient for contact lens use?

What type of wear involves wearing contact lenses for 30 consecutive days?

What wear schedule is recommended for the healthiest option to minimize exposure to debris from previous days?

What risk factor is associated with abusing contact lenses by not replacing them regularly?

What can soft contact lenses induce if worn for extended periods?

What is the consequence of sleeping with contact lenses at night, according to the text?

What is the main advantage of wearing silicone hydrogel contact lenses?

Why are patients with extreme dry eye not suitable candidates for cosmetic contact lenses?

How does pregnancy affect contact lens wearing?

Why should contact lenses not be exposed to tap water or lake water?

What is the effect of taking anti-histamines while wearing contact lenses?

What type of condition can prevent patients from being suitable for cosmetic contact lenses?

What is the main reason a patient might choose to wear contact lenses for cosmetic purposes, despite the associated risks?

Why might a patient with severe dry eye not be a good candidate for contact lenses?

What is the recommended wear schedule for minimizing exposure to debris from previous days when wearing contact lenses?

Why is it important to replace the contact lens case every 3 months?

What is a potential consequence of sleeping with contact lenses in terms of oxygen delivery to the eye?

What type of wear schedule involves wearing contact lenses for 6-7 consecutive days before taking them off?

What is a potential consequence of abusing contact lenses by not replacing them regularly?

What is a reason some patients might be unsuitable candidates for LASIK surgery?

What is considered a dry eye based on tear breakup time (TBUT)?

What type of disease causes incomplete closure of the lids and contributes to dryness in the eye?

What is one potential effect of wearing soft contact lenses for extended periods?

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