Soft Contact Lenses – Lens Selection, Paperwork, and Handling Practice Test

These questions are part of the practice quiz. Start practicing

• Which practice helps ensure proper alignment and centration of soft lenses during fitting?
• What is the formula to measure base curve of a contact lens?
• Which is a listed drawback of monthly disposable lenses?
• When applying contact lenses to a patient's eye, where should they look?
• What is the purpose of releasing eyelids one at a time after lens placement?
• Why may tints be considered with lens selection?
• How much overlap should occur for the appropriate lens diameter (OAD)?
• True or False: Increased modulus improves handling for new lens wearers.
• Which factor has the greatest impact on sagittal depth?
• Which action should you take if a lens is inverted and you are about to insert it?
• What is the common range of soft contact lens powers?
• How should wearers respond to redness that persists after lens removal?
• When inspecting a contact lens before insertion, what should you look for?
• Which wear category is defined as being worn for up to 30 days and nights?
• Which statement about monthly disposable lenses is true regarding extended wear?
• Which technique is used to remove a lens when the eye is looking up and away?
• What does the acronym RGP stand for in contact lens terminology?
• Virals packs (1, 2, 3, and 4) are a replacement option for which type of lens?
• A decrease in the base curve diopter leads to a radius that is
• What is center thickness and why does it matter for soft contact lenses?
• The diameter often causes the lens to displace in which direction?
• What is the primary reason for verifying that lens parameters match the clinician's intent at dispensing?
• What are the extreme lens diameters?
• Why is it important to document and verify prescription accuracy at dispensing?
• Lens application: which steps should you perform before inserting a contact lens?
• When might a clinician choose a silicone hydrogel multifocal lens over a rigid gas permeable multifocal?
• curve on the back surface of the lens
• How do we determine the appropriate lens diameter (OAD)?
• What is the goal of the appropriate lens diameter (OAD)?
• What steps should be taken after screening and selecting an appropriate lens?
• What factors impact sagittal depth?
• With a larger diameter and a constant base curve, which statement best describes sagittal height and fit?
• What is the effect of poor centration or misalignment on vision with soft contact lenses?
• What should you do if you notice inversion signs during application?
• For patients with dry eye, which statement best reflects the role of daily disposable lenses?
• What is the power step size for higher powers (greater than 6.00 D)?
• What is a listed benefit of bi-weekly disposable lenses?
• What is the cost of a professional fit fee?
• How are flexible wear contact lenses worn?
• Which statement describes signs that a lens is inverted (inside out)?
• Virals packs are associated with which type of lenses?
• With a constant base curve and an ideal diameter, the sagittal height is
• What professional fees are typically associated with contact lenses?
• What are the results of a flat lens?
• Which of the following is a drawback of daily disposable lenses?
• What does the abbreviation DIA or OAD refer to?
• Biweekly and monthly disposable lenses come in replacement pack sizes of which option?
• Which signs indicate hypoxia in soft lens wear, and what is the initial management?
• If the lens is placed on scleral, what should the patient do to help sealing?
• If there is a decrease in the radius of base curve, the contact lens will be flatter/steeper.
• What is FDA's definition of disposable contact lenses?
• A soft lens with an 8.6 base curve from one manufacturer may not fit the same as another 8.6 BC lens from a different manufacturer. Which statement is true?
• For Ks less than 45.00 D, we often select a base curve that is
• The calculation 337.5 divided by Ks reading yields the base curve in which unit?
• Is it true that most soft CLs come in one lens diameter (OAD)?
• With constant base curve, increasing diameter changes sagittal height by
• Which statement best describes initial wearing time education for soft contact lenses?
• What is the proper method to immobilize the eyelids during lens application?
• What is the correct hygiene sequence when handling soft contact lenses?
• Which factor best explains why soft lenses typically have a limited number of base curves?
• Which statement is true about a steep lens?
• When a patient reports lens-induced dryness or discomfort, which adjustment is commonly considered?
• What is the recommended hand-cleaning method before removing the lens?
• Which measurements are essential in a soft contact lens fitting?
• Before removing the contact lens, how should you clean your hands?
• Which methods can clinicians use to assess dry eye signs before fitting soft lenses?
• Soft contact lens base curves are generally fit very
• Which lens category has some approval for extended wear?
• What is a common pitfall when recording lens parameters on a prescription?
• What steps should be taken if a lens feels dry and sticky on the eye?
• In soft lens terminology, what does the abbreviation BC stand for?
• What does movement assessment in soft lens fitting indicate?
• Which statement is true about a steep lens?
• If sagittal height is constant, the fit would be
• To remove the contact lens, the patient should look up and away. How do you remove the contact lens?
• In a soft lens prescription, what do cylinder power and axis represent, and when are they required?
• Which statement about wear schedule, cleaning, and follow-up for soft contact lenses is most accurate?
• Which combination of factors is commonly considered to determine sagittal depth?
• If you fit a spherical contact lens, what term describes the remaining astigmatism?
• Overnight wear increases risk of which events?
• Clinically significant sagittal height difference is approximately how many micrometers?
• An increase in the base curve radius results in a sagittal height that is:
• With a constant diameter, a tighter fit yields sagittal height
• What is the purpose of a patient consent for contact lens wear?
• What is the average corneal diameter or horizontal visible iris diameter (HVID)?
• What is the difference between a 'labeled' base curve and the 'actual' base curve of a contact lens?
• Before dispensing soft contact lenses to a new patient, which paperwork is typically required?
• What steps should be taken if a patient reports vision flashes or contact lens-induced corneal staining?
• A properly sized diameter helps prevent which issues?
• Why do soft lenses typically come in only one or two base curves?
• How should clinicians address lens wearers with allergies?
• OAD stands for which term in lens measurements?
• Which statement correctly describes the power steps for soft contact lenses?
• What should a recommended replacement schedule be based on?
• Why is documentation of patient education important?
• Which finding suggests that a toric lens may be more appropriate than a spherical lens?
• What are common contraindications to soft contact lens wear?
• Which indicator suggests toric lenses may be needed as opposed to spherical lenses?
• With the base curve constant and a smaller diameter (looser fit), the sagittal height is
• Which statement best describes the proper eyelid immobilization technique?
• What do we really want to determine with contact lens selection?
• What replacement schedule packs does a specialty soft contact lens come in?
• When selecting the spherical equivalent, which description best describes the choice?
• Which value is NOT among the four common cylinder options?
• What is the consequence of releasing both eyelids at the same time after lens placement?
• With a constant base curve and a larger diameter, the sagittal height is
• After the contact lens is placed on the patient's eye, how should you release their eyelids?
• To remove the contact lens, where should the patient look?
• What are the two replacement schedule packs a daily lens comes in?
• If a lens shows edge lift or decentration during wear, what is the most likely clinical action?
• How are continuous wear contact lenses worn?
• When comparing 8.6 BC soft contact lenses from different manufacturers, what remains the only valid comparison?
• If vision symptoms of corneal staining are reported by a lens wearer, what steps should be taken?
• What does Dk/t represent in soft contact lens materials?
• Which statement about Dk and long-wear wear is true?
• Which of the following is true about the recommended direction the patient should look when applying a lens to scleral area?
• Which item is NOT typically used as a measured parameter in soft lens selection?
• What is the proper hand hygiene protocol before handling contact lenses?
• What are the two replacement schedule packs a weekly lens comes in?
• What is the purpose of the cleaning rub step in lens care?
• What is the purpose of vertexing back to the corneal plane?
• Which diameter range is typical for soft contact lenses?
• Which of the following actions is recommended to prevent burning or discomfort when cleaning hands prior to lens handling?
• Which of the following is a benefit of daily disposable lenses?
• What is the primary reason to inspect a lens before insertion?
• Which combination of tests is commonly used to assess tear film quality before soft lens fitting?
• Base curves chosen for soft lenses are about how many diopters flatter than Ks?
• Too small of a lens diameter causes a lens to be which shape?
• What is a benefit of increased modulus for new lens wearers?
• What is the difference between alignment and decentration in soft lens wear?
• How is base curve expressed?
• After applying a contact lens to the patient's eye, what should they do so the contact lens 'seals' on?
• How should a clinician assess fit and centration when trying a new soft lens?
• Which of the following is NOT a common contraindication to soft contact lens wear?
• How do replacement schedules differ among lens types, and why is compliance important?
• What is the goal of the contact lens diameter?
• Which practice best summarizes safe lens application?
• Which statement about Ks as predictors for soft lens base curves is accurate?
• Which factor is not typically used as a basis for replacement schedules?
• For Ks greater than 45.00 D, we often select a base curve that is
• Before removing the contact lens, how should you position the patient?
• How does pupil size influence lens choices?
• How is the power of a patient's contact lenses determined?
• Which statement best describes why water exposure is risky for contact lens wearers?
• Where should you place the lens?
• Continuous wear lenses are worn for up to how long?
• Which statement is true about daily disposable lenses?
• What is the lower bound of the ocular sagittal height range?
• Base curve is located on which surface of a contact lens?
• Is the described method to immobilize the eyelids during lens application correct?
• What is the average ocular sagittal height?
• Which factor is NOT listed as influencing lens fit beyond sagittal height and diameter?
• What are the two methods of fitting contact lenses?
• Which statement about choosing lens designs is most accurate?
• Why is base curve selection critical in soft lens fitting?
• When assessing a lens fit, which statement reflects an appropriate movement expectation?
• Daily disposable lenses are best suited for which wearers?
• How does corneal topography influence toric lens selection?
• How are daily wear contact lenses worn?
• How should a patient demonstrate proper insertion technique?
• HVID stands for which measurement?
• Which is a sign that the lens is inverted?
• What documentation is recommended after selecting a lens and before applying it?
• What feature distinguishes toric soft contact lenses from spherical lenses?
• If there is an increase in the diopter (D) of base curve, the contact lens will be flatter/steeper.
• What is the recommended next step after confirming the lens is free of defects and properly oriented?
• What is the purpose of corneal topography in lens selection?
• What should you check for during lens inspection besides defects or debris?
• Which statement is true about replacement schedules and safety compliance?
• What is a typical consequence of inserting a lens that is inverted?
• What term describes the curve on the back surface of a contact lens?
• What are the results of a steep lens?
• How is CLAP managed if suspected?
• What is a stated con of bi-weekly disposable lenses?
• Base curves for hydrogel soft lenses are generally
• What information should be documented about wear schedule when fitting new lenses?
• Which of the following is a common fit issue indicating improper lens fit?
• If a lens diameter is too small, which issue is most likely?
• What is the range of the ocular sagittal height?
• What information should be recorded in the patient record after a new lens fitting?
• Which fitting method uses diagnostic ('trial') lenses placed at the first visit?
• Which statement best describes the difference between aspheric and spherical contact lens designs?
• What should a patient do if a damaged contact lens is noticed?
• How should reusable soft lenses be cleaned and stored?
• What is the power step size for common powers?
• Which lens category has the widest range of parameters?
• Which symptom is a sign that a lens is inverted?
• What is the role of stabilization features in toric soft lenses?
• Which sign indicates a lens-related problem requiring lens removal and reevaluation?
• What is the recommended practice regarding replacement of disinfection solution and the lens case?
• If there is an increase in the radius of base curve, the contact lens will be flatter/steeper.
• True or False: Empirical fitting based on pre-fit data is beneficial, and soft lenses can often be dispensed the same day.
• Which of the following four measurements should be considered for soft lens selection?
• If there is a decrease in the diopter (D) of base curve, the contact lens will be flatter/steeper.
• Why is lid anatomy assessment important during lens fitting?
• If toric correction is not indicated, which lens power should be chosen?
• What is the difference between centration and movement of a contact lens on blinking?
• Which fitting method uses information from the pre-fit examination so that the lenses are placed at the dispensing visit?
• In extreme contact lens fitting, which combination is typically preferred?
• Silicone hydrogel lenses are favored for extended wear primarily due to higher what?
• How is the appropriate base curve determined when given Ks?
• When considering age in contact lens wear, which lens characteristics are preferred for a child?
• Which practice best reduces infection risk related to water exposure when handling contact lenses?
• Which factor has the greatest impact on sagittal depth?
• Before inserting a lens, what should you inspect on the lens?
• What is typically included on a care label for contact lens solutions?
• Which option lists the four common cylinder options exactly?
• Which documentation is essential when a patient’s prescription is extended or renewed?
• Why is tear film quality considered when selecting soft lenses?
• What are the primary reasons to prescribe toric soft lenses instead of spherical lenses?
• With a constant diameter, a looser fit yields sagittal height
• What is the recommended action if redness persists after lens removal?
• When caring for children, which lens characteristics are preferred?
• What is the typical lens diameter for soft contact lenses?
• If sagittal height is constant, the fit would be
• How are extended wear contact lenses worn?
• What is a typical advantage of daily disposable lenses compared to reusable options?
• What are daily disposable lenses, and when are they advantageous?
• How often should follow-up appointments typically occur after the initial soft lens fitting?
• Which of the following is NOT listed as a factor influencing the choice between daily disposables and reusable soft lenses?
• The power of a patient's contact lenses is vertexed back to the corneal plane if greater than +/- ____ D.
• How does axis rotation affect vision in toric lenses and what stabilization features help?
• Doubling the base curve diopter value results in the base curve radius becoming what?
• Too large of a lens diameter causes a flat/steep lens. What are the results?
• Daily lenses come in which replacement pack sizes, and weekly lenses come in which packs?
• Which statement correctly explains why a clinician might select a silicone hydrogel with higher Dk/t for a patient who needs extended wear?
• Which measurement determines the appropriate contact lens diameter?
• Why is a follow-up schedule critical for contact lens wearers?
• Which of the following describes a sign of a properly oriented lens?
• Which of the following is NOT a common cylinder option?
• Which category is described as economical and having improved compliance?
• How should the contact lens diameter be measured?
• Compared with the corneal curve, base curves for hydrogel soft lenses are typically
• Most soft lenses come in only one (maybe two) base curves.
• New lens wearers benefit more from which modulus?
• Besides sag and diameter changes, which factors can impact lens fit?
• A decrease in the base curve diopter leads to a radius that is
• Which statement accurately describes tear film quality in relation to soft lens selection?
• What is a key benefit of weekly disposable lenses?
• When would toric contact lenses be considered?