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Contact Lenses NCLE Chapter 4 Questions And Answers With Verified Solutions Rated A+
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Contact Lenses NCLE Chapter 4 Questions And Answers With Verified Solutions Rated A+
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Contact Lenses NCLE Chapter 4Questions And Answers With Verified
Solutions Rated A+
The eyelids play an important role in the fitting and wear of contact lenses for
which of the following reasons:
a. They affect the wettability of the lens surface
b. They affect the positioning of the lens
c. They are sensitive and generally cause most of the discomfort when a lens is
first placed on the eye
d. All of the above - ANSWER✔✔ d. all of the above
They eyelids play an important role in the fitting and wear of contact lenses. They
affect the wettability of the lens surface, They affect the positioning of the lens,
and they are sensitive and generally cause most of the discomfort when a lens is
first placed on the eye.
Small punctate stains on the corneal epithelium when seen under an ultraviolet
light are most likely caused by:
a. foreign bodies
b. loose lenses
c. tight lenses
d. apical clearance lenses - ANSWER✔✔ c. tight lenses
, Small punctate stains on the corneal epithelium when seen under an ultraviolet
light are most likely caused by tight lenses.
After about four hours of wear, your patient complains that his eyes feel "hot."
This may be an indication of:
a. too small a lens
b. too large a lens
c. too loose a lens
d. too tight a lens - ANSWER✔✔ d. too tight a lens
After about fours hours of wear, if your patient complains that their eyes feel
"hot" this might be an indication of too tight a lens
A rigid gas permeable contact lens is causing a slight stagnation of tears over the
corneal apex. One possible lens modification might be:
a. to reduce the base curve radius
b. to reduce the lens diameter
c. to increase the lens diameter
d. to fenestrate the lens - ANSWER✔✔ b. to reduce the lens diameter
A rigid gas permeable contact lens is causing a slight stagnation of tears over the
corneal apex, one possible lens modification might be to reduce the lens
diameter.
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