NOCE NOCE Contact Lens Fitting and Care 3

Question 1

Contact lens-induced papillary conjunctivitis (CLPC) is best managed by initially:

Accepted Answer

Reducing wearing time and switching to daily disposable lenses

Answer

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.

Question 2

What is the recommended care protocol for rigid gas-permeable (RGP) contact lens cases?

Accepted Answer

Rinse with fresh multipurpose solution, air dry face-down on a clean tissue, and replace every 3 months

Answer

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.

Question 3

What clinical sign is most characteristic of contact lens-induced corneal hypoxia (overwear syndrome)?

Accepted Answer

Limbal and corneal neovascularization (vessel ingrowth)

Answer

Chronic corneal hypoxia from contact lens overwear stimulates limbal vessel ingrowth (neovascularization) as the cornea attempts to obtain more oxygen.

Question 4

Which cleaning step is considered the MOST important part of the RGP lens care regimen to remove surface deposits?

Accepted Answer

Rubbing the lens with daily cleaner for 20–30 seconds

Answer

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.

Question 5

The FDA-approved maximum continuous (extended) wear period for silicone hydrogel contact lenses approved for extended wear is:

Accepted Answer

30 days / 29 nights

Answer

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.

NOCE - National Opticianry Competency Examination Practice Test

NOCE - National Opticianry Competency Examination Practice Test

NOCE NOCE Contact Lens Fitting and Care 3