NOCE Contact Lens Fitting and Care Flashcards
6 cards from real NOCE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 NOCE Contact Lens Fitting and Care flashcards as text
Contact lens-induced papillary conjunctivitis (CLPC) is best managed by initially:
Answer: Reducing wearing time and switching to daily disposable lenses
Initial management of CLPC includes reducing lens wearing time, switching to preservative-free daily disposable lenses to minimize antigen exposure, and potentially using topical mast cell stabilizers.
What is the recommended care protocol for rigid gas-permeable (RGP) contact lens cases?
Answer: Rinse with fresh multipurpose solution, air dry face-down on a clean tissue, and replace every 3 months
Lens cases should be rinsed with fresh contact lens solution (never tap water), air-dried face-down on a tissue, and replaced every 3 months to prevent microbial contamination.
What clinical sign is most characteristic of contact lens-induced corneal hypoxia (overwear syndrome)?
Answer: Limbal and corneal neovascularization (vessel ingrowth)
Chronic corneal hypoxia from contact lens overwear stimulates limbal vessel ingrowth (neovascularization) as the cornea attempts to obtain more oxygen.
Which cleaning step is considered the MOST important part of the RGP lens care regimen to remove surface deposits?
Answer: Rubbing the lens with daily cleaner for 20–30 seconds
Mechanically rubbing the RGP lens with daily surfactant cleaner is the most effective step for removing protein, lipid, and debris deposits from the lens surface.
The FDA-approved maximum continuous (extended) wear period for silicone hydrogel contact lenses approved for extended wear is:
Answer: 30 days / 29 nights
Certain silicone hydrogel contact lenses are FDA-approved for up to 30 consecutive days of continuous (extended) wear, though practitioners often recommend shorter intervals for safety.
When a patient presents with a contact lens prescription and requests new lenses, the optician must verify the prescription has not expired. In most US states, what is the standard expiration period for a contact lens prescription?
Answer: 1 year
Under the US Fairness to Contact Lens Consumers Act (FCLCA), contact lens prescriptions are valid for a minimum of 1 year from the date of the fitting exam, unless the prescriber specifies a different expiration for clinical reasons.