CPOT Contact Lens Fitting & Patient Care 3

Question 1

What is the correct method for cleaning contact lens storage cases?

Accepted Answer

Rinse with fresh multipurpose solution and air dry face down on a tissue

Answer

Contact lens cases must be rinsed with fresh multipurpose solution—never tap water—and air dried face down to eliminate moisture and prevent microbial contamination.

Question 2

What is the generally recommended maximum wearing time per day for conventional daily wear soft contact lenses?

Accepted Answer

12 to 16 hours

Answer

Most practitioners recommend limiting daily wear soft lens use to 12–16 hours to ensure the cornea receives adequate oxygen during lens-free periods, typically overnight.

Question 3

Which set of symptoms should prompt a contact lens wearer to immediately remove lenses and seek urgent eye care?

Accepted Answer

Sudden eye pain, marked redness, and light sensitivity

Answer

Sudden eye pain, significant redness, and photophobia may indicate corneal infection or ulceration, which can threaten vision and requires immediate lens removal and urgent evaluation.

Question 4

What is the primary risk of sleeping in contact lenses that are not approved for extended (overnight) wear?

Accepted Answer

Increased risk of microbial keratitis and corneal hypoxia

Answer

Sleeping in non-extended wear lenses severely reduces corneal oxygenation and creates a warm, moist environment that significantly increases the risk of microbial keratitis, a potentially blinding infection.

Question 5

Which solution should NEVER be used to rinse contact lenses before insertion?

Accepted Answer

Tap water

Answer

Tap water contains Acanthamoeba and other microorganisms that can adhere to contact lenses and cause Acanthamoeba keratitis, a severe and difficult-to-treat corneal infection.

CPOT - Certified Paraoptometric Technician Practice Test

CPOT - Certified Paraoptometric Technician Practice Test

CPOT Contact Lens Fitting & Patient Care 3