Ncle B

Upon initial insertion of a GP lens the patient complains about flare. To correct this problem the fitter should choose a lens with a/an

The principal advantage of a minus carrier CTL in fitting high hyperopes (hyperopia) is that it:

In using fluorescein to evaluate the fit of a rigid lens of 9.0mm diameter on a typical eye a correct statement is that

A toric soft lens with a prescription of -2.00-1.25x120 has the axis resting at the 5 o'clock position what should the new axis be when the lens is ordered?

Patients with high riding lenses often have:

A patient has the prescription Plano -1.25x170 and "k" readings of 42.50/42.50 to achieve the best visual acuity in fluoresilicone acrylate material the Should be

One way to eliminate silicone hydrogel edge fluting is to use a material with a :

A patient wearing a toric soft lens with the parameters -1.50-1.25x180 has an over refraction of -0.75+0.50x90 a new lens should be ordered with which parameters?

One way to eliminate silicone hydrogel edge fluting is to use a material with a

The evaluation of a rigid lens detects bubbles centrally minimal lens movement, and poor tear exchange which of the following lens changes would be more appropriate

Given the following information:

"K" :41.00@180/44.50@090

Spectacle Rx: -2.00-1.50x090

A contact lens fitter should be alert to which of the following problems?

A therapeutic lens with minimal movement should be used for which of the following conditions?

If a well fitted diagnostic lens has a -3.00 power and the over refraction at 12mm is -2.00 the correct lens power to order is:

A soft lens patient has a spectacle correction of +8.50D at a vertex of 12mm what would be the most appropriate sphere power

The appearance of transient bubbles near the periphery of a contact lens is indicative of:

Which curve would a fitter modify to allow more tear flow under the edge of a rigid lens

When a silicone hydrogel lens is used as a cushion between the cornea and a GP lens it is called

When a soft diagnostic lens is too flat, it may demonstrate:

While being fitted with a diagnostic soft lens a patient reports variable visual acuity with excessive lid sensation the most probable cx for these symptoms is a lens that is too

When working with rigid contact lenses fitters often use fluorescein to evaluate the:

A fluorescein pattern that has a black area over the corneal apex and a diffuse green area in the periphery normally indicates:

While performing fluorescein evaluation of a diagnostic rigid lens on a patient with 3.00 diopter of With-the -rule astigmatism a fitter observes absence of fluorescein horizontally pooling of fluorescein vertically and air bubbles under the inferior lens edge. The best lens type for this patient would be:

For a PT with 1.25 diopters of with the rule astigmatism who is active outdoors and who operates heavy construction equipment the most appropriate type of CTL would be

Moving a +7.50 prescription from the spectacle plane to the corneal plane will require:

Most soft multi focal lens designs will:

A PT wearing a -2.00 diagnostic soft lens has the best vision with an over refraction of -0.50x090 which of the following should be ordered

Which of the following changes would improve a rigid contact lens fit that shows sluggish movement after 1 hour of wear

A rigid lens of 45.00 D/-4.00 provides 20/20 vision what power would be needed if the central posterior curve (base curve) is changed to 45.50 D ?

What would be the most appropriate soft lens diameter for a PT whose HVID is 12mm?

IPCs are used to:

When using lid manipulation to assist in "pooping" a rigid lens off the eye the wearer should first make sure that the:

To verify rigid CTL should always be performed by manipulation of the lens :

A drop of liquid must be placed in the radiuscope lens holder in order to eliminate reflections from the:

When rigid lenses are received from the manufacturer which of the following instruments is not needed for inspection and verification

The optical zone width of a GP lens can be assessed with a:

Which of the following should be used to determine if a soft lens is inverted ?

Which of the following disinfectant chemicals is safe to use with soft CTL

A lens that was ordered as 45.00 (7.50) -4.00 8.7 has been received as 45.50 (7.42) -4.25 8.7 in regard to this lens which of the following statements is corrected under ANSI standards

When scheduling a follow up visit the fitter should instruct a daily CTL PT to:

A PT complains of pain upon lens insertion with excessive tearing and blurry vision. Fluorescein evaluation reveals zigzag linear corneal staining these signs and symptoms are most likely due to a :

The BC reading of a warped lens through a raidiuscope is most similar to that of a/an

Upon insertion a well fitted hydrogel lens is repeatedly ejected from the eye the most likely cx of this problem is:

During long periods between users rigid lenses should be stored in a

During long periods between users rigid lenses should be stored in a

If the BC of a rigid CTL was ordered as 7.80mm and the lens received measures 7.85 the lens is:!

The instrument designed primarily to measure the BC of a CTL is the :

With the rule corneal astigmatism with GP lens in place will show which of the following fluorescein patterns ?

Which of the following terms refers to new blood vessel formation entering the cornea from the limbus

One function of GP lens soaking solution is to:

It is recommended that after successful initial follow up visits the continuous / extended wear CTL PT should be seen

Which of the following instruments can be used to measure both corneal curvature and the BC of a rigid CTL

A fitter is evaluating the visual acuity of a PT who is currently wearing multi focal soft lenses. For this PT over refraction is best done using:

Following the fitting and dispensing of any continuous wear CTL it is advisable to see the PT

According to the U.S. food and drug administration the maximum time allowable for continuous wearing of silicone hydrogel lenses is

The BC of a rigid lens is usually verified with a :

The most effective way to remove a soft CTL that has adhered to the cornea is to:

A daily wear soft lens PT should be scheduled to return for the first follow up visit in:

The most common technique for a PT to insert a rigid lens is to:

The fitter can differentiate between a back toric lens and a bitoric lens by utilizing a:

Which of the following solution preservatives may damage the surface of a diagnostic GP lens?

Which of the following instruments is most commonly used to measure the diameter of the optical zone of a CTL

Which of the following compounds would be best to use for adjusting or polishing GP lenses ??

Examining the reflection of a bare fluorescein tube on the surface of a GP lens is most often used to check:

The current ANSI standard tolerance for a spherical lens with a power of -5.00 is:

In order to check the front vertex power of a CTL the lens should be placed in which of the following positions relative to the aperture of the lensometer

When a practice dispense the older solutions before the newer solutions it is called

A PT submits the prescription from a box of disposable lenses to a third party CTL distributor. This prescription is faxed to the original fitter for verification. If the fitter does not respond to this request the:

The fairness to CTL consumers act covers

The most important procedures for preventing the spread of infections in healthcare offices is:

The primary advantage to the practice of delivery of CTL from manufacturer to PT is that it :

Under the fairness to CTL consumers act fee bundling of CTL solutions and fitting:

The goal of occupational safety health and administration (osha) is to:

Diagnostic soft lenses in blister packs should be :

Which of the following is the primary function of ANSI?

The age discrimination in employment act of 1967 prohibits the employment discrimination of persons over the age of:

Evaluation instruments that touch PT skin lashes or lenses should be wiped after each use with:

Which of the following is the mode of the slit lamp illumination used to view the early stages of microystic edema?

Which of the following should be noted on the PT health history record as a temporary contraindication to the use of CTL

A CTL wearer presents with acute red eyes the fitter would most likely ask the PT

Which of the following BC would loosen the fit of a 8.70 soft lens if the diameter is kept constant:

A PT returns for a recheck reporting a sudden sharp pain this morning upon insertion of a soft daily wear lens. The fitter should suspect

Which of the following is best detected by observing the cornea without the microscope when the beam of the slit lamp is focused directly on the limbus ?

On a follow up visit a 20 year old myopic PT reports difficulty with near vision although distance vision is excellent. This PT is most likely :

A long term successful hydrogel CTL wearer suddenly develops dry eyes which of following is most likely to cx this problem

Which part of the eyes is most sensitive to a rigid corneal CTL during the adaptation period

Which of the following changes is best able to improve oxygen transmissibility to a PT cornea

A PT who is wearing a GP lens complains of a "scratching sensation " the lens specifications are found to be accurate. Which of the following instruments would be most valuable in determining the cx of discomfort?

A PT complains of reduced vision after a well fitted rigid lens has been polished by the fitter the fitter should

Inadequate movement of a soft lens can be corrected by using a lens that:

With regard to a CTL examination the acronym SOAP stands for :

A GP lens wearer reports a scratchy feeling upon lens insertion; the discomfort increases with wearing time the most likely correction would be

A new daily wearer of soft lenses returns for the first follow up visit with itching, burning, injected eyes. The most likely cx of these problems is

A new corneal transplant who is wearing GP represents with injection, edema, and neovascularization at the graft juncture. The fitter should

Reducing the diameter of a minus lens results in:

To ensure follow up recall appointments it is important to

If a soft lens wearer complains of awareness of the lens is the right eye only, and the right and left parameters are identical which of the following would be best for the fitter to do first

Fluorescein that has been installed into the eye is best illuminated by using :

A silicone hydrogel soft lens is wearer presents with a superior arcuate lesion, this indicates

Bedewing of the cornea occurs on which of the following corneal layers

What an office visit is documented in a PT record the final notation should be the :

During slit lamp evaluation on upward gaze a PT soft CTL move 0.5 to 1mm when PT blinks these lenses are

Which layer of the tear film helps to prevent evaporation

The most frequently used corneal CTL for a PT with keratoconus are

A drooping of the upper eyelid is called

A PT has the following prescription:

Spectacle Rx +14.50 sph

This prescription is typical of which of the following conditions

Given the following "k" readings:

41.87@055/43.62@145

What optical condition does the PT have?

When a keratometer is being calibrated which of the following targets will provide the most reliable results ?

A spherical rigid CTL has

A rigid CTL used to enhance color vision in PT who have color deficiencies is

Soft lenses should be considered when the PT

A correct statement regarding epithelial cells is that they

Upon completion of a CTL fitting, the best way to provide additional information to the PT on fees care systems and wearing schedules is by

Which of the following slit lamp filters should be used for the best observation of neovascularization

For a PT who presents with traumatic aniridia, photophobia, and visual acuity potential of 20/25 the best lens would be an

Given the following keratometric reading

42.50@90/45.62 @180!

Which of the following types of astigmatism is indicated

Which of the following prescriptions indicates against the rule astigmatism

Rose bengal stains areas of

The normal cornea is NOT

Which of the following characteristics is most likely to be exhibited by diabetic contact lens PT