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The Silicone Hydrogels website is partially supported through an educational grant from CIBA VISION

 
Previous Votes 2005 - 2006 | back to 2007

 

 

When educating patients about the wear and care of their contact lenses, in addition to verbal instructions, which method do you find to be the most reliable?

Only the manufacturers’ instructions (generally given by myself)
  63.92% ( 186 votes)
Only the manufacturers’ instructions (generally given by my support staff)
  3.44% ( 10 votes)
My own practice / office developed written instructions
  14.09% ( 41 votes)
My own practice / office developed written instructions and a signed informed consent
  16.49% ( 48 votes)
Alternative methods of instruction (e.g. videos, DVD, web based etc.)
  2.06% ( 6 votes)
Total 291 votes

 

 

Which statement best describes your prescribing habits for silicone hydrogel(SiHy)lenses when they are available in the lens parameters required for your patients:

I recommend SiHy lenses to all my patients (new fits and proactive refitting of existing wearers)
  73.57% ( 167 votes)
I only fit SiHy lenses to patients with higher prescriptions or those who sleep or nap in lenses
  1.76% ( 4 votes)
I only refit patients with SiHy lenses when they have symptoms of discomfort / dryness
  13.66% ( 31 votes)
I only refit patients with SiHy lenses when they show signs of oxygen deprivation
  10.13% ( 23 votes)
I only fit SiHy lenses when my patients request them
  0.88% ( 2 votes)
Total 227 votes

 

 

In which area of contact lens care and maintenance do you find your patients to be the most non-compliant?

failure to wash hands prior to handling lenses
  17.95% ( 14 votes)
failure to replace lenses when scheduled
  55.13% ( 43 votes)
switching care products
  12.82% ( 10 votes)
inappropriate use of care products
  8.97% ( 7 votes)
sleeping in low Dk/t daily wear lenses
  5.13% ( 4 votes)
Total 78 votes

 

 

Which do you consider should be the next advancement for silicone hydrogels to significantly improve in-eye performance?

increased dk/t
  4.82% ( 4 votes)
improved surface properties
  60.24% ( 50 votes)
lower modulus
  32.53% ( 27 votes)
higher water content
  2.41% ( 2 votes)
Total 83 votes

 

 

Comparing an older patient to a younger patient, which statement do you feel best reflects the response of the central cornea to hypoxia?

An older cornea will swell more than a younger cornea
  19.57% ( 9 votes)
An older cornea will swell less than a younger cornea
  4.35% ( 2 votes)
An older cornea will recover at a faster rate than a younger cornea
  2.17% ( 1 votes)
An older cornea will recover at a slower rate than a younger cornea
  65.22% ( 30 votes)
There is no difference in corneal swelling between an older cornea compared to a younger cornea
  8.7% ( 4 votes)
Total 46 votes

 

 

When making a differential diagnosis between CLPU and microbial keratitis, which of the following sign or symptoms do you consider to be most helpful:

Decreased best corrected visual acuity
  12.77% ( 6 votes)
An irregular shape to the
lesion(s)
  25.53% ( 12 votes)
Anterior chamber reaction
  17.02% ( 8 votes)
Lesion(s) in the central or paracentral cornea
  40.43% ( 19 votes)
Lid edema
  4.26% ( 2 votes)
Total 47 votes

 

 

When prescribing silicone hydrogel contact lenses for daily wear (DW) what do you consider the minimum Dk/t value required?

The highest Dk/t lens available
  46.55% ( 290 votes)
Any lens with a central Dk/t of 50
  2.73% ( 17 votes)
Any lens with a central Dk/t of 86
  18.14% ( 113 votes)
Any lens with a central Dk/t of 125
  30.5% ( 190 votes)
Dk/t values are not important for DW patients
  2.09% ( 13 votes)
Total 623 votes

 

 

How often have you seen conjunctival epithelial flaps in your silicone hydrogel wearers:

never
  50% ( 34 votes)
sometimes
  29.41% ( 20 votes)
often
  16.18% ( 11 votes)
always
  4.41% ( 3 votes)
Total 68 votes

 

 

When fitting a 10 year old child with contact lenses, which of the following benefits of silicone hydrogel lenses do you consider to be most important?

Very high oxygen transmission
  40.66% ( 111 votes)
Flexibility in wear schedule
  16.12% ( 44 votes)
Ease of handling and good durability
  17.58% ( 48 votes)
Decreased dryness symptoms
  25.64% ( 70 votes)
Total 273 votes

 

 

When recommending multipurpose care regimens for daily wear silicone hydrogels do you advise patients to include a rub and rinse step?

Never
  6.21% ( 10 votes)
When lenses show filmy deposits
  10.56% ( 17 votes)
Always
  83.23% ( 134 votes)
Total 161 votes

 

 

Have You Measured Refractive Changes With Your Silicone Hydrogel Lens Wearers?

Yes, more plus (less minus)
  52.04% ( 51 votes)
Yes, less plus (more minus)
  21.43% ( 21 votes)
Yes, both
  13.27% ( 13 votes)
No refractive changes measured
  13.27% ( 13 votes)
Total 98 votes

 

 

How many years do you predict it will be before the number of silicone hydrogel lens wearers (any modality) exceeds the number of conventional hydrogel wearers?

1 year
  12.66% ( 20 votes)
2 years
  27.22% ( 43 votes)
5 years
  44.3% ( 70 votes)
10 years
  12.66% ( 20 votes)
Never
  3.16% ( 5 votes)
Total 158 votes

 

 

Which of these risk factors do you most often associate with Microbial Keratitis:

Poor lens and lens care hygiene
  64.65% ( 214 votes)
Delay in seeking treatment
  2.11% ( 7 votes)
Swimming
  30.51% ( 101 votes)
Lenses bought over internet or other non-ophthalmic source
  1.81% ( 6 votes)
Gender
  0.91% ( 3 votes)
Total 331 votes

 

 

Which of the following "therapeutic/treatment" applications do you most frequently prescribe silicone hydrogel lenses for?

Bandage lens(es) for corneal trauma or abrasions
  22.99% ( 63 votes)
Bandage lens(es) after laser eye surgery
  6.57% ( 18 votes)
Piggyback carrier lens(es) for keratoconus or irregular astigmatism
  11.31% ( 31 votes)
Bandage lens(es) for the management of corneal disease (e.g. Thygeson`s, bullous keratopathy, recurrent corneal erosions etc.)
  21.17% ( 58 votes)
Total 274 votes

 

 

What is the most important criterion you use when deciding whether to fit and prescribe soft toric rather than spherical lenses?

Astigmatism -0.75D, regardless of axis
  19.75% ( 31 votes)
Astigmatism -0.75D ,against the rule or oblique only
  1.27% ( 2 votes)
Astigmatism -1.00D, regardless of axis
  7.64% ( 12 votes)
Decrease in VA of 1 line when cylinder uncorrected
  12.1% ( 19 votes)
Subjective reports of poor vision and astigmatism of -0.75D
  59.24% ( 93 votes)
Total 157 votes

 

 

When patients present with mechanical complications associated with silicone hydrogel lens wear, what management strategies do you most frequently utilize:

Lens replacement with no change in material or parameters
  14.11% ( 58 votes)
Refit with same material and different parameters
  29.2% ( 120 votes)
Refit with lower modulus silicone hydrogel lens
  24.57% ( 101 votes)
Refit with silicone hydrogel lens with alternative lens design
  6.33% ( 26 votes)
Refit with conventional hydrogel lens
  25.79% ( 106 votes)
Total 411 votes

 

 

When CLPC patients are ready to resume lens wear, what is your preferred option?

More frequent replacement with the same lens type
  7.69% ( 8 votes)
Change to another soft lens type with same wear schedule
  36.54% ( 38 votes)
Change to daily wear
  11.54% ( 12 votes)
Change to daily disposable wear
  38.46% ( 40 votes)
Change to an RGP lens
  5.77% ( 6 votes)
Total 104 votes

 

 

For what percentage of your silicone hydrogel lens wearers do you recommend daily wear only?

0-20%
  18.75% ( 15 votes)
21-40%
  10% ( 8 votes)
41-60%
  6.25% ( 5 votes)
61-80%
  17.5% ( 14 votes)
81-100%
  47.5% ( 38 votes)
Total 80 votes

 

 

When prescribing silicone hydrogel contact lenses which of the following factors do you consider to be most important?

Lens fitting characteristics
  11.03% ( 46 votes)
Oxygen transmissibility
  38.13% ( 159 votes)
Wettability and surface characteristics
  16.79% ( 70 votes)
Lens modulus
  26.38% ( 110 votes)
Initial lens comfort
  7.67% ( 32 votes)
Total 417 votes

 

 

When refitting patients to daily wear with silicone hydrogels, how frequently do you change their care system?

never
  23.4% ( 11 votes)
less than 50%
  34.04% ( 16 votes)
more than 50%
  27.66% ( 13 votes)
always
  36.17% ( 17 votes)
Total 47 votes

 

 

How many of your conventional hydrogel patients experience discomfort or lens awareness in the first week after being refit with silicone hydrogels?

All
  15.69% ( 16 votes)
Some
  75.49% ( 77 votes)
None
  8.82% ( 9 votes)
Total 102 votes

 

 

What is the main factor that prevents you from recommending Silicone Hydrogels to all your patients?

patient satisfaction
  32.22% ( 58 votes)
cost-to-patient
  15% ( 27 votes)
patients satisfied with current vision correction
  19.44% ( 35 votes)
profitability
  29.44% ( 53 votes)
I don't like the concept of continuous wear
  2.22% ( 4 votes)
other
  1.11% ( 2 votes)
Total 180 votes

 

 

From your patients' point of view, what is the main benefit of Silicone Hydrogels?

Eye health
  42.64% ( 110 votes)
Reduced reliance on spectacles
  18.6% ( 48 votes)
Convenience/ flexible wear schedule
  18.99% ( 49 votes)
Longer wearing times
  19.77% ( 51 votes)
Total 258 votes
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