Contact Lens – NCLE Questions With Complete Solutions
A computer operator returns for a follow up care and complains
of intermittent blur between blinks. Your initial impression is:
Correct Answer Fixation dehydration
A contact lens is quite loose. Its base curve is 7.40 mm. In order
to obtain a tighter fit, we might change the base curve to:
Correct Answer 7.35 mm
A free living protozoa, acanthamoeba, is more likely found:
Correct Answer In home made saline solutions
A lens which has a greater concentration of flourescein dye
around the periphery but gets lighter in intensity as it approaches
the center of the lens might be fitting: Correct Answer Flat
A patient returns for follow up care with a rhino virus and is
taking an over the counter decongestant/antihistamine. A
possible side effect is: Correct Answer Corneal dehydration
A patient with pseudoaphakia will require a prescription for:
Correct Answer Near acuity
A possible cause for edge sensation of a rigid lens wearer is that
the: Correct Answer Lens is too flat
A possible cause of blur when reading with an RGP lens might
be: Correct Answer Poor centration
, A preservative used in some soft lens solutions which may cause
an allergic response in sensitive wearers is: Correct Answer
Thimerosal
A protein found in the tear film that is a potent germ killer is:
Correct Answer Lysozyme
A R.G.P. lens of 9.3 diameter is fitting too steep. Without
reordering the lens, you might: Correct Answer Decrease the
diameter of the lens
A reason bubbles are discovered under an RGP lens might be
that the: Correct Answer Lens is too large
A soft lens of water content greater than 60% cannot be
disinfected by: Correct Answer Low heat aseptic techniques
A soft lens wearer has been successfully wearing her lenses for
two years. She now complains of poor vision. Upon inspection
you find that the lenses are riding high under the upper eyelid.
This is most likely caused by lenses: Correct Answer
Deteriorated and dirty
All of the following are functions of a wetting solution except:
Correct Answer It helps to clean the lenses after removal from
the eye
All of the following are layers of the cornea except: Correct
Answer a. Descemet's membrane
*b. Stroman's membrane
c. Epithelium
A computer operator returns for a follow up care and complains
of intermittent blur between blinks. Your initial impression is:
Correct Answer Fixation dehydration
A contact lens is quite loose. Its base curve is 7.40 mm. In order
to obtain a tighter fit, we might change the base curve to:
Correct Answer 7.35 mm
A free living protozoa, acanthamoeba, is more likely found:
Correct Answer In home made saline solutions
A lens which has a greater concentration of flourescein dye
around the periphery but gets lighter in intensity as it approaches
the center of the lens might be fitting: Correct Answer Flat
A patient returns for follow up care with a rhino virus and is
taking an over the counter decongestant/antihistamine. A
possible side effect is: Correct Answer Corneal dehydration
A patient with pseudoaphakia will require a prescription for:
Correct Answer Near acuity
A possible cause for edge sensation of a rigid lens wearer is that
the: Correct Answer Lens is too flat
A possible cause of blur when reading with an RGP lens might
be: Correct Answer Poor centration
, A preservative used in some soft lens solutions which may cause
an allergic response in sensitive wearers is: Correct Answer
Thimerosal
A protein found in the tear film that is a potent germ killer is:
Correct Answer Lysozyme
A R.G.P. lens of 9.3 diameter is fitting too steep. Without
reordering the lens, you might: Correct Answer Decrease the
diameter of the lens
A reason bubbles are discovered under an RGP lens might be
that the: Correct Answer Lens is too large
A soft lens of water content greater than 60% cannot be
disinfected by: Correct Answer Low heat aseptic techniques
A soft lens wearer has been successfully wearing her lenses for
two years. She now complains of poor vision. Upon inspection
you find that the lenses are riding high under the upper eyelid.
This is most likely caused by lenses: Correct Answer
Deteriorated and dirty
All of the following are functions of a wetting solution except:
Correct Answer It helps to clean the lenses after removal from
the eye
All of the following are layers of the cornea except: Correct
Answer a. Descemet's membrane
*b. Stroman's membrane
c. Epithelium
