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Test Your Contact Lens Knowledge

September 21, 2022 by Michael Wojton, O.D. Leave a Comment

Hi everyone- it’s time for a quiz!  Judging from the results of a national poll, it appears that there is a lot of misinformation and misunderstandings regarding contact lenses.  So I thought it would be interesting to prove that my patients are more informed than the rest of those in the country.
No cheating.  Sharpen your #2 pencils and let’s begin!

1) Most new contact wearers discontinue wearing them because of:
A) Blurry vision
B) Discomfort
C) Difficulty with handling

2) Contact lenses that change your eye color are no longer available.
A) True
B) False

3) Most contact lenses are relatively similar to one another and usually do not need a doctors prescription to switch between brands.
A) True
B) False

4) Newer types of contacts are made from silicone, which is:
A) Good because it helps make vision clearer.
B) Good because it helps the cornea “breathe.”
C) Bad because it make them thinner and more flimsy.

5) Regarding contacts lenses:
A) Some types have been proven to slow down the progression of nearsightedness.
B) Certain brands can help guard against developing cataracts.
C) Studies show that they may help you run faster.

6) Which of the following are true:
A) Some astigmatism contacts block “harmful blue light” from your screen (which we all know is minuscule anyway and any device marketed to do so is a scam).
B) Contacts are available that are clear when indoors and darken when exposed to UV rays.
C) Costume contact lenses that people usually buy around Halloween are not “real” contacts which makes them OK to buy without a prescription from a gas station convenience store or your friends nail salon.
D) All are false.

7) Daily disposable contacts are growing in popularity in the U.S., with about a 30% market share. In some countries, especially in Asia, daily disposables make up ____% of the market.
A) 40%
B) 55%
C) 75%

8) Which of the  following is true regarding contact lens solutions?:
A) Multipurpose solutions (ie Biotrue, Optifree) are designed to re-wet and disinfect contacts overnight.
B) Reusing the solution in your contact lens case and “topping it off” is OK to do for a few days.
C) Saline solution is much less expensive than multipurpose solutions and still provide adequate disinfection properties.

9) The FDA has approved contact lenses that can be worn continuously for:
A) 30 days
B) 60 days
C) 90 days

10) Regarding water and contacts (choose all that apply):
A) Showering with your contacts does not increase your risk of an eye infection or corneal ulcer
B) Going in the ocean, because of the salt water, does not increase your risk of the above.
C) Pool water is potentially worse than tap water or salt water because of chlorine.
D) In regards to contacts, all water is created equal, which makes all of the above false.

11) Certain contacts have FDA approval for up to 60 minutes of napping.
A) True
B) False

 

 

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Gaslight Village Shopping Ctr
85 Makefield Road
Morrisville, PA 19067
Phone: 215-295-0444
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