Fitting and Reference Guide

Fitting and Reference Guide
PRIOR TO FITTING
1) Determine the patient’s spherical equivalent
prescription and correct to the corneal plane.
2) Determine the distance refraction, reading
add and dominant eye.
Astigmatism
Diopter
Selecting a PolyVue Lens
For questions, inquiries,
consultation or to order
call: (877) 734-2010
0.00 to -0.50
No Add Requirement
HD / HD2
Up to +1.00 Add
HD / HD2
+1.25 to +2.50 Add
HDX / HDX2
-0.75 to -1.25
HD / HD2 / HD-T
HD / HD2 / HD-T
HDX / HDX2 / HDX-T
-1.50 to -2.25
HD-T
HD-T
HDX-T
This sheet is intended as a guide only. Final lens selection is at practitioner’s discretion.
STANDARD MYOPIC AND HYPEROPIC FITTING Use The Aspherics (HD, HD-T or HD2)
• Select the appropriate Aspheric lens based on patient’s needs.
• Determine lens power from the patient’s spherical equivalent prescription corrected to
the corneal plane.
• Place the appropriate power lens on the patient’s eye and allow it to reach a state of
equilibrium (10 – 20 minutes).
Make adjustment in power as necessary. The use of hand held trial lenses and
over-refraction in ambient light is necessary to achieve best possible results.
• Observe the lens relationship to the eye in the same manner as any soft lens. If it moves
appropriately with blinking, completely covers the cornea, provides comfort and visual
acuity it is considered a well fitted lens and may be dispensed to patient.
HD and HD2 lenses are effective in masking .75 diopter astigmatism, and sometimes up to 1.50 diopter. To
fit greater than -0.75 cylinder with HD-T toric lenses please refer to the toric fitting guide below.
TORIC FITTING (Use HD-T and HDX-T lenses)
Fitting Tip: Standard HD, HD2, HDX and HDX2 lenses are effective in masking 0.75 diopter astigmatism, sometimes
up to 1.50 diopter - You may not need a Toric lens!
For offices with fitting kits
For offices without fitting kits
• Select either the HD or HDX lenses based on
patient’s needs.
• Determine lens power based on the guidelines
elsewhere in this guide.
• Fit the HD or HDX lens to the patient and use
over-refraction to determine cylinder and axis
requirements.
• Call PolyVue to order your Toric trials.
• Select either the HD or HDX lenses
based on patient’s needs.
• Determine lens power based
on the guidelines elsewhere in this
guide.
• Call PolyVue to order your Toric
trials
Presbyopic fitting guide on opposite side of this page
For questions, inquiries, consultation or
to order call (877) 734-2010
PRESBYOPE FITTING OPTIONS
EMERGING PRESBYOPE FITTING Use the Aspherics (HD, HD-T or HD2)
When the patients required add power is +1.00 diopter or less determine the lens power by adding
+0.50 to the patient’s corrected spherical equivalent prescription.
BINOCULAR PROGRESSIVE FITTING
BUMPED BINOCULAR PROGRESSIVE FITTING
Determine the progressive lens power by
correcting the patient’s spherical equivalent
prescription to the corneal plane.
For the non-dominant eye determine the
progressive lens power by adding +0.25 or +0.50,
respectively to the patient’s corrected spherical
equivalent prescription.
For Patients requiring a +1.25 to +2.00 Add
Use The Progressives (HDX, HDX-T or HDX2)
FITTING TIP: The Aspheric design of all PolyVue
lenses is so effective at masking mild astigmatism
that for patients with less than -0.75 cylinder,
you can simply disregard in your calculations.
For Patients requiring a +2.25 to +2.50 Add
Use The Progressives (HDX, HDX-T or HDX2)
For the dominant eye select the progressive lens
power closest to the patient’s corrected spherical
equivalent prescription.
Confirm binocular far and near visual acuity. Make adjustment in power as necessary. The use of hand
held trial lenses and over-refraction in ambient light is necessary to achieve best possible results.
• To improve near vision: Add in plus in quarter (+0.25) steps to both eyes. If distance vision becomes
unacceptable with this change, add plus to the non-dominant eye only.
• To improve distance vision: Add minus in quarter (-0.25) steps to both eyes. If near vision becomes
unacceptable with this change, add minus to the dominant eye only. If improvement cannot be
made, use one of the Aspheric lenses in the dominant eye. (Modified Monovision fitting)
FITTING TIP: The Progressives do very well with binocular correction of presbyopia.
Try modified monovision if a binocular fitting has been unsuccessful.
MODIFIED MONOVISION FITTING For Patients requiring a +1.25 to +2.50 Add
(Use both Aspheric and Progressive lenses)
For the dominant eye determine the Aspheric (HD, HD2 or HD-T) lens power by adding +0.50 to the
patient’s corrected spherical equivalent prescription. For the non-dominant eye select the Progressive
(HDX, HDX2 or HDX-T) lens power closest to the patient’s corrected spherical equivalent prescription.
Make adjustment in power as necessary. The use of hand held trial lenses and over-refraction in
ambient light is necessary to achieve best possible results.
CLASSIC MONOVISION FITTING Use The Aspherics (HD, HD-T or HD2)
For the dominant eye determine the lens power by adding +0.50
to the patient’s corrected spherical equivalent prescription.
For the non-dominant eye determine the lens power by adding
half of the required add power to the patient’s corrected
spherical equivalent prescription. (Ex: For a +2.50 Add patient
increase spherical equivalent by +1.25)
FITTING TIP: With PolyVue High
Definition lenses there is less need
to “over plus” the non-dominant
eye to achieve good results,
making them very effective when
fitting classic monovision.
Toric fitting guide on opposite side of this page