If the diagnostic rigid gas permeable lens placed on the eye results in minimal
movement, which of the following will increase the movement on the lens ordered for
the patient? - ANS decreasing the overall lens diameter
if a soft contact lens decenters laterally, exposing a portion of the patients limbus, what
change in parameter would improve this situation? - ANS increasing overall lens
diameter
when evaluating a diagnostic soft lens on a patient, you notice that the movement is
sluggish after only a few minutes. which of the following changes would you make to the
lenses that are ordered for the patient? - ANS flatten the base curve
which of the following lens designs would provide the best visual result for this patient?
43.00@180/46.00@90 RX: -3.00 sph - ANS soft spherical lens
which edge design is recommended for a +15.00 D Aphakic rgp design? - ANS
lenticular myoflange
the following gas permeable lens is placed on the eye: 43.50 -2.00 9.2
an over refraction is performed with the following: pl +1.50 x95
which parameter would you pick for the patient? - ANS 43.50 -0.50 -1.50 x5 9.2
an excellent material for a patient with kerataconus is? - ANS fluoro silicone acrylate
which of the following would be considered in fitting a patient with kerataconus? - ANS
aspheric, mcguire & soper
45.00@180/44 @90 RX: -3.00 +1.00 x180
upper lid positioned at the superior limbus.
which of the following set of lens specifications would simulate an interpalpebral fit? -
ANS 44.50 -2.50 8.5
which would best simulate a lid attachment?
42.00@180/ 43.00 @90 RX: -2.00 -0.87 x180
upper lid positioned 2mm below superior limbus - ANS 41.50 -1.50 9.5
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