User Manual

Part Number: PFG01017 Page 12 of 17
Revision A Revision Date: July 2016
the adaptational symptoms to the patient. These symptoms may last for a brief minute or for several weeks. The
longer these symptoms persist, the poorer the prognosis for successful adaptation.
To help in the adaptation process the patient can be advised to first use the lenses in a comfortable familiar
environment such as in the home.
Some patients feel that automobile driving performance may not be optimal during the adaptation process. This is
particularly true when driving at night. Before driving a motor vehicle, it may be recommended that the patient be
a passenger first to make sure that their vision is satisfactory for operating an automobile. During the first several
weeks of wear (when adaptation is occurring), it may be advisable for the patient to only drive during optimal
driving conditions. After adaptation and success with these activities, the patient should be able to drive under
other conditions with caution.
7. Other Suggestions
The success of the monovision technique may be further improved by having your patient follow the suggestions
below:
• Having a third contact lens (distance power) to use when critical distance viewing is needed.
• Having a third contact lens (near power) to use when critical near viewing is needed.
• Having supplemental spectacles to wear over the monovision contact lenses for specific visual tasks may
improve the success of monovision correction. These “asymmetric power” spectacles may be for balanced
near or far vision. This particularly applicable for those patients who cannot meet state licensing requirements
with a monovision correction.
• Make use of proper illumination when carrying out visual tasks.
Success in fitting monovision can be improved by the following suggestions:
• Reverse the distance and near eyes if a patient is having trouble adapting.
• Refine the lens powers if there is trouble with adaptation. Accurate lens power is critical for presbyopic
patients.
• Emphasize the benefits of the clear near vision in straight ahead and upward gaze with monovision.
• The decision to fit a patient with a monovision correction is most appropriately left to the eye care
practitioner in conjunction with the patient after carefully considering the patient’s needs.
• All patients should be supplied with a copy of the Instructions for Wearers.
Diagnostic Lens Care
Eye care practitioners should educate contact lens technicians concerning proper care of diagnostic lenses.
Each contact lens is sterilized in a glass vial containing a sterile buffered isotonic saline solution. Hands should be
thoroughly washed and rinsed and dried with a lint free towel prior to handling a lens. In order to insure sterility, the
vial should not be opened until immediately prior to use.
Lenses should be surface cleaned and disinfected prior to reusing in a diagnostic procedure or dispensing to a
patient. Because of the high water content, heat disinfection cannot be used with any Frequency 55 Toric Contact
Lens referred to in this Fitting Guide. A chemical disinfection system must be used. Refer to the section titled
Chemical (not heat) Lens Disinfection. Do not alternate or mix lens care systems.