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Contact Lens Suitability Assessment
80 Questions
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Contact Lens Suitability Assessment

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Questions and Answers

What is the primary reason why a practitioner should not fit themselves with contact lenses?

  • To ensure proper follow-up care
  • Because they cannot conduct the appropriate examinations on themselves (correct)
  • To avoid self-diagnosis
  • To maintain patient confidentiality

    • What should a patient be told to do if they experience discomfort, redness, watering, visual disturbance, or other problems?

  • Seek professional advice before changing to a solution not recommended (correct)
  • Discontinue lens use until the issue resolves
  • Contact the manufacturer for guidance
  • Try a different brand of contact lenses

    • What is a characteristic of high modulus contact lenses?

  • They are more forgiving to fit
  • They tend to move better on the eye
  • They are more comfortable for the wearer
  • They are often due to older Silicone Hydrogel designs (correct)

    • What is the purpose of lubricity in a contact lens?

    <p>To reduce abrasion and provide a more forgiving fit</p> Signup and view all the answers

    What is the result of resistance to dehydration in a contact lens?

    <p>Comfort due to continued lubricity and maintenance of movement</p> Signup and view all the answers

    What is the purpose of wettability in a contact lens?

    <p>To improve tear film stability</p> Signup and view all the answers

    Which type of patient may benefit from a contact lens with better wettability and lubricity?

    <p>A patient with dry eye or incomplete blink</p> Signup and view all the answers

    What is the classification of UV protection in the Acuvue Oasys 1-day and 2-weekly lenses?

    <p>Class 1 for both</p> Signup and view all the answers

    What is the percentage of UVA protection in a Class 1 UV-protected contact lens?

    <p>90%</p> Signup and view all the answers

    What is the approximate percentage of lifetime UV exposure that occurs before the age of 18?

    <p>80%</p> Signup and view all the answers

    What is the maximum time period for which a patient's eye examination prescription is considered valid for contact lens suitability assessment?

    <p>24 months</p> Signup and view all the answers

    What is required to be recorded on the contact lens record card if the eye check has taken place at Boots Opticians?

    <p>Details of the prescription including date and prescriber</p> Signup and view all the answers

    Who can fit contact lenses?

    <p>Only registered optometrists, doctors, contact lens opticians, or trainees under appropriate supervision</p> Signup and view all the answers

    What should you avoid in contact lens practice?

    <p>Occasional contact lens practice</p> Signup and view all the answers

    What should you discuss with patients before fitting powered or zero powered contact lenses?

    <p>All of the above, including the risks and complications, advantages and disadvantages, and total estimated costs</p> Signup and view all the answers

    What should you discuss with patients to help them make informed choices?

    <p>Contact lens options and risks and benefits</p> Signup and view all the answers

    What is the timescale for a patient's last eye examination or sight test when assessing a patient who wishes to wear zero powered contact lenses?

    <p>Within the past two years or within the timescale recommended at the patient’s last eye examination or sight test</p> Signup and view all the answers

    What level of care should patients wearing powered or zero powered contact lenses receive?

    <p>The same degree of care as they are exposed to the same risks</p> Signup and view all the answers

    What should you include in the assessment of a patient who wishes to wear contact lenses?

    <p>A detailed assessment of the anterior eye and relevant information about the patient's history</p> Signup and view all the answers

    What is the minimum requirement for patients wishing to wear powered contact lenses?

    <p>A recent sight test within the last two years</p> Signup and view all the answers

    Who are authorized to fit contact lenses?

    <p>Optometrists, doctors, and contact lens opticians</p> Signup and view all the answers

    What should you ensure when fitting contact lenses?

    <p>The type and brand of contact lens and care regimen are suitable for the patient</p> Signup and view all the answers

    What is required for patients wishing to wear zero powered contact lenses?

    <p>A recent sight test</p> Signup and view all the answers

    What should be recorded in the patient notes?

    <p>All relevant information</p> Signup and view all the answers

    What should you record in the patient notes when fitting contact lenses?

    <p>All relevant information and advice given to the patient</p> Signup and view all the answers

    Who should not fit themselves with contact lenses?

    <p>The person themselves</p> Signup and view all the answers

    What should you determine and advise on when fitting contact lenses?

    <p>The wearing schedule and the length of the fitting period</p> Signup and view all the answers

    What is the usual duration of the fitting period for contact lenses?

    <p>Less than three months</p> Signup and view all the answers

    Why should you discuss with the patient why you find them unsuitable for contact lens wear?

    <p>To inform the patient of the reasons for unsuitability and provide an alternative solution</p> Signup and view all the answers

    What should you consider when assessing a patient for contact lens wear?

    <p>All of the above, including medical history, previous contact lens wear, occupational and recreational needs, and ability to handle and care for the contact lenses</p> Signup and view all the answers

    What is the primary factor affecting oxygen transmissibility in Silicone Hydrogels?

    <p>Silicone polymer structure</p> Signup and view all the answers

    Why do Hydrogels have lower Dk/t values compared to Silicone Hydrogels?

    <p>Higher water content</p> Signup and view all the answers

    What is a potential drawback of using Silicone Hydrogels with higher modulus?

    <p>Decreased wearer comfort</p> Signup and view all the answers

    What happens when Hydrogels dehydrate over time?

    <p>They cause symptoms of dryness</p> Signup and view all the answers

    Why is Acuvue Moist a potential alternative to Silicone Hydrogels?

    <p>It attracts lysozyme</p> Signup and view all the answers

    What is the primary consequence of insufficient oxygen supply to the cornea?

    <p>Corneal epithelial barrier function compromise</p> Signup and view all the answers

    What is the potential consequence of corneal epithelial barrier function compromise?

    <p>Inflammation and infection</p> Signup and view all the answers

    What is a characteristic of Proclear lenses?

    <p>Retention of water due to PC content</p> Signup and view all the answers

    What is the primary advantage of using Silicone Hydrogels as a first-choice lens?

    <p>Higher oxygen transmissibility</p> Signup and view all the answers

    What is a potential complication arising from hypoxia?

    <p>Neovascularisation</p> Signup and view all the answers

    What is the primary reason for requiring a recent sight test for patients wishing to wear powered or zero powered contact lenses?

    <p>To ensure the patient's prescription is up to date</p> Signup and view all the answers

    What is the minimum requirement for professionals who can fit contact lenses?

    <p>Registered optometrists, doctors, contact lens opticians, or trainees under appropriate supervision</p> Signup and view all the answers

    What should be avoided when fitting contact lenses?

    <p>Occasional contact lens practice</p> Signup and view all the answers

    What is the maximum time period for which a patient's eye examination prescription is considered valid for contact lens suitability assessment?

    <p>24 months</p> Signup and view all the answers

    What should be recorded on the contact lens record card where the eye check has taken place at Boots Opticians?

    <p>Details of the prescription including date and prescriber</p> Signup and view all the answers

    What should be done with the patient's prescription if the eye check has taken place outside Boots Opticians?

    <p>Staple a copy of the prescription inside the contact lens record card</p> Signup and view all the answers

    Why is it important to discuss options with patients?

    <p>To help them make informed choices</p> Signup and view all the answers

    What should be given to patients wearing powered or zero powered contact lenses?

    <p>The same degree of care as they are exposed to the same risks to their ocular health</p> Signup and view all the answers

    What should not be done by a practitioner?

    <p>Fitting themselves with contact lenses</p> Signup and view all the answers

    What is the purpose of updating the OPS record with a patient's prescription?

    <p>To record the patient's prescription as an external Rx with expiry</p> Signup and view all the answers

    What should a health care professional discuss with patients before fitting powered or zero powered contact lenses?

    <p>The risks and complications of wearing contact lenses and the advantages and disadvantages of available contact lens types</p> Signup and view all the answers

    What should health care professionals ensure when fitting contact lenses?

    <p>That the type and brand of contact lens and care regimen are suitable for the patient</p> Signup and view all the answers

    Who may fit contact lenses?

    <p>Only optometrists, doctors, and contact lens opticians</p> Signup and view all the answers

    What should health care professionals record in the patient notes when fitting contact lenses?

    <p>Any information or advice given to the patient</p> Signup and view all the answers

    What should health care professionals consider when assessing a patient for contact lens wear?

    <p>All of the above, as well as other relevant factors</p> Signup and view all the answers

    What should health care professionals tell patients when fitting contact lenses?

    <p>How to wear and care for the contact lenses safely and hygienically</p> Signup and view all the answers

    Why should health care professionals avoid occasional contact lens practice in specialist areas?

    <p>Because it requires specialized knowledge</p> Signup and view all the answers

    What should health care professionals ensure when conducting a sight test or eye examination for patients who wish to wear contact lenses?

    <p>That the patient has had a sight test or eye examination within the past two years</p> Signup and view all the answers

    What should health care professionals discuss with patients who are unsuitable for contact lens wear?

    <p>Why they find them unsuitable for contact lens wear</p> Signup and view all the answers

    What should health care professionals determine and advise on when fitting contact lenses?

    <p>The length of the fitting period</p> Signup and view all the answers

    What is the primary factor affecting oxygen transmissibility in Hydrogels?

    <p>Water content</p> Signup and view all the answers

    What is the benefit of lower water content in Silicone Hydrogels?

    <p>Resistance to dehydration</p> Signup and view all the answers

    What is the consequence of insufficient oxygen supply to the cornea?

    <p>Corneal epithelial barrier function compromise</p> Signup and view all the answers

    What is the primary advantage of using Silicone Hydrogels as a first-choice lens?

    <p>Higher Dk/t</p> Signup and view all the answers

    What is a characteristic of Silicone Hydrogels with higher modulus?

    <p>They can be uncomfortable</p> Signup and view all the answers

    What happens when Hydrogels dehydrate over time?

    <p>They cause symptoms of dryness</p> Signup and view all the answers

    What is the benefit of higher Dk/t values in Silicone Hydrogels?

    <p>They minimize hypoxia and associated complications</p> Signup and view all the answers

    Why are Silicone Hydrogels a better choice for longer wearing times?

    <p>They are more resistant to dehydration</p> Signup and view all the answers

    What is the result of corneal epithelial barrier function compromise?

    <p>All of the above</p> Signup and view all the answers

    What is a characteristic of Acuvue Moist lenses?

    <p>Low modulus</p> Signup and view all the answers

    What is the primary purpose of explaining the care, wearing, treatment, cleaning, and maintenance of contact lenses to the patient?

    <p>To educate the patient on how to handle and maintain their contact lenses properly</p> Signup and view all the answers

    What is the primary advantage of using contact lenses with low modulus?

    <p>They are more forgiving to fit and tend to move better on the eye</p> Signup and view all the answers

    What is the primary consequence of a contact lens with high modulus?

    <p>It is more likely to cause discomfort and papillary conjunctivitis</p> Signup and view all the answers

    What is the primary purpose of assessing the wettability of a contact lens?

    <p>To evaluate its lubricity and surface smoothness</p> Signup and view all the answers

    What is the primary benefit of using contact lenses with UV protection?

    <p>They reduce the risk of cataract and age-related macular degeneration</p> Signup and view all the answers

    What is the primary characteristic of a contact lens with high lubricity?

    <p>It moves more on the eye and provides a more forgiving fit</p> Signup and view all the answers

    What is the primary reason why a patient with dry eye may benefit from a contact lens with better wettability and lubricity?

    <p>To provide a more comfortable fit and reduce mechanical irritation</p> Signup and view all the answers

    What is the primary purpose of recording the patient's contact lens specification?

    <p>To provide a written record of the patient's contact lens prescription</p> Signup and view all the answers

    What is the primary consequence of a contact lens that dehydrates over time?

    <p>It reduces its oxygen transmissibility and increases the risk of hypoxia</p> Signup and view all the answers

    What is the primary reason why a practitioner should not fit themselves with contact lenses?

    <p>They cannot conduct the appropriate examinations on themselves</p> Signup and view all the answers

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