Astigmatism
Conditions
Brief summary
Bilateral dispensing clinical trial of stenfilcon A against etafilcon A for astigmatism.
Detailed description
CooperVision is evaluating the clinical performance of an FDA cleared silicone-hydrogel lens material stenfilcon A (test) compared to etafilcon A for Astigmatism lens (control) when worn on a daily wear basis over one (1) week in a randomized, bilateral, cross-over, dispensing study.
Interventions
DEVICEstenfilcon A toric lens
toric contact lens
DEVICEetafilcon A toric lens
toric contact lens
Sponsors
CooperVision, Inc.
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
17 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Is at least 17 years of age for Canada and 18 years of age for the USA and has full legal capacity to volunteer; * Has read and signed an information consent letter; * Is willing and able to follow instructions and maintain the appointment schedule; * Is an adapted soft contact lens wearer; * Requires a spherical contact lens prescription between -1.00 to -6.00 inclusive in each eye * Has spectacle astigmatism: -0.50 to -1.50D (Diopter) cylinder (Axis: 90±20, 180±20 in both eyes); * Willing to wear contact lens in both eyes for at least 8 hours per day, 7 days per week; * Has manifest refraction visual acuities (VA) equal to or better than logMAR equivalent of 20/25 in each eye; * To be eligible for lens dispensing, the subject must have VA of logMAR equivalent of 20/30 or better in each eye with the study lenses and the investigator must judge the fit as acceptable.
Exclusion criteria
* Is participating in any concurrent clinical or research study; * Has any known active\* ocular disease and/or infection; * Has a systemic condition that in the opinion of the investigator may affect a study outcome variable; * Is using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable; * Has known sensitivity to the diagnostic pharmaceuticals to be used in the study; * Is pregnant, lactating (by verbal confirmation at the screening visit); * Is aphakic; * Has undergone refractive error surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Lens Fit Acceptance | Baseline and 1 Week | Lens fit acceptance (on eye stability) for stenfilcon A and etafilcon A assessed at baseline and 1 week. Scale 0-4, 0=Can't be worn, 1=Poor, 2=Fair, 3=Good, 4=optimum. |
| Conjunctival Staining | Baseline and 1 week | Ocular health of conjunctival staining for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Measured in 0.50 steps, scale 0-4, 0=None, 1=Minimal diffuse punctate, 2=Coalescent punctate, 3=Confluent, 4= Deep confluent N - Nasal, T - Temporal, S - Superior, I - Inferior |
| Lens Durability | 1 Week | Lens durability (lens tearing) between stenfilcon A toric lens or etafilcon A toric lens assessed at 1 week. (The number of lens tear or lens nicks found during the one week study). |
| Corneal Staining, Type | Baseline and 1 week | Ocular health of corneal staining, type for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Scale 0-4, 0=No staining, 4=Severe staining Five quadrants: C - Central, N - Nasal, T - Temporal, S - Superior, I - Inferior |
| Comfort | Baseline and 1 Week | Subjective ratings of lens performance for comfort assessed at baseline and 1 week. Comfort Scale 0-100, 0=extremely uncomfortable/cannot tolerate, 100=extremely comfortable/cannot be felt. |
| Handling | Baseline and 1 Week | Subjective ratings of lens performance for handling assessed at baseline and 1 week. Handling Scale 0-100, 0=very difficult to handle, 100=very easy to handle. |
| Vision | Baseline and 1 Week | Subjective ratings of lens performance for vision assessed at baseline and 1 week. Scale 0-100, 0=extremely poor vision all of the time, cannot function, 100=excellent. |
| High Visual Acuity | Baseline and 1 Week | High illumination high contrast (HIHC) visual acuity for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Visual acuity is measured by logMAR. |
| Low Visual Acuity | Baseline and 1 Week | Low illumination high contrast (LIHC) visual acuity for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Visual acuity is measured by logMAR. |
| Lens Surface - Wettability | Baseline and 1 Week | Lens surface of wettability for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Scale 0-4, 0=severely reduced, 4=excellent wettability. |
| Lens Surface - Deposits | Baseline and 1 Week | Lens surface of wettability for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Scale 0-4, 0=no deposits, 4=severe deposits. |
| Corneal Staining, Extent | Baseline and 1 week | Ocular health of corneal staining (extent) for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Scale 0-4, 0=No staining 1=1-15% of area 2=16-30% of area 3=31-45% of area 4=\>45% of area Five quadrants: C - Central, N - Nasal, T - Temporal, S - Superior, I - Inferior |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Overall Satisfaction | Baseline and 1 week | Overall satisfaction of stenfilcon A and etafilcon A lenses. Scale 0-100, 0=extremely dissatisfied, 100=extremely satisfied. |
| Dryness | 1 Week | Subjective ratings of lens performance for dryness assessed during the day and at the end of the day. Scale 0-100, 0=cannot be worn, extremely dry, 100=no dryness experienced at any time. |
Countries
Canada, United States
Participant flow
Pre-assignment details
7 subjects discontinued before lens randomization due to screen failure.
Participants by arm
| Arm | Count |
|---|---|
| Overall Baseline Characteristics Participants were randomized to wear stenfilcon A toric lens or etafilcon A toric lens bilaterally for one week, then cross over to the alternative pair. | 44 |
| Total | 44 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| First Intervention (One Week) | Headache | 0 | 1 |
Baseline characteristics
| Characteristic | Overall Baseline Characteristics |
|---|---|
| Age, Continuous | 26 years STANDARD_DEVIATION 9 |
| Region of Enrollment Canada | 21 participants |
| Region of Enrollment United States | 23 participants |
| Sex: Female, Male Female | 34 Participants |
| Sex: Female, Male Male | 10 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — |
| other Total, other adverse events | 0 / 44 | 0 / 44 |
| serious Total, serious adverse events | 0 / 44 | 0 / 44 |
Outcome results
Primary
Comfort
Subjective ratings of lens performance for comfort assessed at baseline and 1 week. Comfort Scale 0-100, 0=extremely uncomfortable/cannot tolerate, 100=extremely comfortable/cannot be felt.
Time frame: Baseline and 1 Week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Comfort | Baseline | 88 units on a scale | Standard Deviation 13 |
| Stenfilcon A Toric Lens | Comfort | 1 week | 85 units on a scale | Standard Deviation 14 |
| Etafilcon A Toric Lens | Comfort | Baseline | 78 units on a scale | Standard Deviation 18 |
| Etafilcon A Toric Lens | Comfort | 1 week | 77 units on a scale | Standard Deviation 21 |
Primary
Conjunctival Staining
Ocular health of conjunctival staining for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Measured in 0.50 steps, scale 0-4, 0=None, 1=Minimal diffuse punctate, 2=Coalescent punctate, 3=Confluent, 4= Deep confluent N - Nasal, T - Temporal, S - Superior, I - Inferior
Time frame: Baseline and 1 week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Conjunctival Staining | Baseline - Nasal | 0.36 units on a scale | Standard Deviation 0.6 |
| Stenfilcon A Toric Lens | Conjunctival Staining | 1 week - Nasal | 1.19 units on a scale | Standard Deviation 0.82 |
| Stenfilcon A Toric Lens | Conjunctival Staining | Baseline - Temporal | 0.28 units on a scale | Standard Deviation 0.41 |
| Stenfilcon A Toric Lens | Conjunctival Staining | 1 week - Temporal | 1.06 units on a scale | Standard Deviation 0.7 |
| Stenfilcon A Toric Lens | Conjunctival Staining | Baseline - Superior | 0.09 units on a scale | Standard Deviation 0.3 |
| Stenfilcon A Toric Lens | Conjunctival Staining | 1 week - Superior | 0.13 units on a scale | Standard Deviation 0.34 |
| Stenfilcon A Toric Lens | Conjunctival Staining | Baseline - Inferior | 0.22 units on a scale | Standard Deviation 0.41 |
| Stenfilcon A Toric Lens | Conjunctival Staining | 1 week - Inferior | 0.68 units on a scale | Standard Deviation 0.79 |
| Etafilcon A Toric Lens | Conjunctival Staining | 1 week - Inferior | 0.78 units on a scale | Standard Deviation 0.96 |
| Etafilcon A Toric Lens | Conjunctival Staining | Baseline - Nasal | 0.36 units on a scale | Standard Deviation 0.6 |
| Etafilcon A Toric Lens | Conjunctival Staining | Baseline - Superior | 0.09 units on a scale | Standard Deviation 0.3 |
| Etafilcon A Toric Lens | Conjunctival Staining | 1 week - Nasal | 1.49 units on a scale | Standard Deviation 0.96 |
| Etafilcon A Toric Lens | Conjunctival Staining | Baseline - Inferior | 0.22 units on a scale | Standard Deviation 0.41 |
| Etafilcon A Toric Lens | Conjunctival Staining | Baseline - Temporal | 0.28 units on a scale | Standard Deviation 0.41 |
| Etafilcon A Toric Lens | Conjunctival Staining | 1 week - Superior | 0.09 units on a scale | Standard Deviation 0.27 |
| Etafilcon A Toric Lens | Conjunctival Staining | 1 week - Temporal | 0.91 units on a scale | Standard Deviation 0.76 |
Primary
Corneal Staining, Extent
Ocular health of corneal staining (extent) for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Scale 0-4, 0=No staining 1=1-15% of area 2=16-30% of area 3=31-45% of area 4=\>45% of area Five quadrants: C - Central, N - Nasal, T - Temporal, S - Superior, I - Inferior
Time frame: Baseline and 1 week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Corneal Staining, Extent | Baseline - Central | 0.07 units on a scale | Standard Deviation 0.3 |
| Stenfilcon A Toric Lens | Corneal Staining, Extent | 1 week - Central | 0.07 units on a scale | Standard Deviation 0.26 |
| Stenfilcon A Toric Lens | Corneal Staining, Extent | Baseline - Nasal | 0.13 units on a scale | Standard Deviation 0.3 |
| Stenfilcon A Toric Lens | Corneal Staining, Extent | 1 week - Nasal | 0.06 units on a scale | Standard Deviation 0.25 |
| Stenfilcon A Toric Lens | Corneal Staining, Extent | Baseline - Temporal | 0.09 units on a scale | Standard Deviation 0.28 |
| Stenfilcon A Toric Lens | Corneal Staining, Extent | 1 week - Temporal | 0.02 units on a scale | Standard Deviation 0.12 |
| Stenfilcon A Toric Lens | Corneal Staining, Extent | Baseline - Superior | 0.09 units on a scale | Standard Deviation 0.27 |
| Stenfilcon A Toric Lens | Corneal Staining, Extent | 1 week - Superior | 0.22 units on a scale | Standard Deviation 0.46 |
| Stenfilcon A Toric Lens | Corneal Staining, Extent | Baseline - Inferior | 0.47 units on a scale | Standard Deviation 0.59 |
| Stenfilcon A Toric Lens | Corneal Staining, Extent | 1 week - Inferior | 0.28 units on a scale | Standard Deviation 0.55 |
| Etafilcon A Toric Lens | Corneal Staining, Extent | 1 week - Superior | 0.20 units on a scale | Standard Deviation 0.42 |
| Etafilcon A Toric Lens | Corneal Staining, Extent | Baseline - Central | 0.07 units on a scale | Standard Deviation 0.3 |
| Etafilcon A Toric Lens | Corneal Staining, Extent | 1 week - Temporal | 0.13 units on a scale | Standard Deviation 0.38 |
| Etafilcon A Toric Lens | Corneal Staining, Extent | 1 week - Central | 0.01 units on a scale | Standard Deviation 0.11 |
| Etafilcon A Toric Lens | Corneal Staining, Extent | 1 week - Inferior | 0.41 units on a scale | Standard Deviation 0.61 |
| Etafilcon A Toric Lens | Corneal Staining, Extent | Baseline - Nasal | 0.13 units on a scale | Standard Deviation 0.3 |
| Etafilcon A Toric Lens | Corneal Staining, Extent | Baseline - Superior | 0.09 units on a scale | Standard Deviation 0.27 |
| Etafilcon A Toric Lens | Corneal Staining, Extent | 1 week - Nasal | 0.14 units on a scale | Standard Deviation 0.36 |
| Etafilcon A Toric Lens | Corneal Staining, Extent | Baseline - Inferior | 0.47 units on a scale | Standard Deviation 0.59 |
| Etafilcon A Toric Lens | Corneal Staining, Extent | Baseline - Temporal | 0.09 units on a scale | Standard Deviation 0.28 |
Primary
Corneal Staining, Type
Ocular health of corneal staining, type for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Scale 0-4, 0=No staining, 4=Severe staining Five quadrants: C - Central, N - Nasal, T - Temporal, S - Superior, I - Inferior
Time frame: Baseline and 1 week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Corneal Staining, Type | Baseline - Central | 0.09 units on a scale | Standard Deviation 0.32 |
| Stenfilcon A Toric Lens | Corneal Staining, Type | 1 week - Central | 0.07 units on a scale | Standard Deviation 0.27 |
| Stenfilcon A Toric Lens | Corneal Staining, Type | Baseline - Nasal | 0.19 units on a scale | Standard Deviation 0.42 |
| Stenfilcon A Toric Lens | Corneal Staining, Type | 1 week - Nasal | 0.13 units on a scale | Standard Deviation 0.54 |
| Stenfilcon A Toric Lens | Corneal Staining, Type | Baseline - Temporal | 0.09 units on a scale | Standard Deviation 0.28 |
| Stenfilcon A Toric Lens | Corneal Staining, Type | 1 week - Temporal | 0.01 units on a scale | Standard Deviation 0.2 |
| Stenfilcon A Toric Lens | Corneal Staining, Type | Baseline - Superior | 0.12 units on a scale | Standard Deviation 0.34 |
| Stenfilcon A Toric Lens | Corneal Staining, Type | 1 week - Superior | 0.36 units on a scale | Standard Deviation 0.62 |
| Stenfilcon A Toric Lens | Corneal Staining, Type | Baseline - Inferior | 0.56 units on a scale | Standard Deviation 0.75 |
| Stenfilcon A Toric Lens | Corneal Staining, Type | 1 week - Inferior | 0.30 units on a scale | Standard Deviation 0.58 |
| Etafilcon A Toric Lens | Corneal Staining, Type | 1 week - Superior | 0.24 units on a scale | Standard Deviation 0.49 |
| Etafilcon A Toric Lens | Corneal Staining, Type | Baseline - Central | 0.09 units on a scale | Standard Deviation 0.32 |
| Etafilcon A Toric Lens | Corneal Staining, Type | 1 week - Temporal | 0.14 units on a scale | Standard Deviation 0.42 |
| Etafilcon A Toric Lens | Corneal Staining, Type | 1 week - Central | 0.02 units on a scale | Standard Deviation 0.21 |
| Etafilcon A Toric Lens | Corneal Staining, Type | 1 week - Inferior | 0.49 units on a scale | Standard Deviation 0.79 |
| Etafilcon A Toric Lens | Corneal Staining, Type | Baseline - Nasal | 0.19 units on a scale | Standard Deviation 0.42 |
| Etafilcon A Toric Lens | Corneal Staining, Type | Baseline - Superior | 0.12 units on a scale | Standard Deviation 0.34 |
| Etafilcon A Toric Lens | Corneal Staining, Type | 1 week - Nasal | 0.22 units on a scale | Standard Deviation 0.62 |
| Etafilcon A Toric Lens | Corneal Staining, Type | Baseline - Inferior | 0.56 units on a scale | Standard Deviation 0.75 |
| Etafilcon A Toric Lens | Corneal Staining, Type | Baseline - Temporal | 0.09 units on a scale | Standard Deviation 0.28 |
Primary
Handling
Subjective ratings of lens performance for handling assessed at baseline and 1 week. Handling Scale 0-100, 0=very difficult to handle, 100=very easy to handle.
Time frame: Baseline and 1 Week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Handling | Baseline | 87 units on a scale | Standard Deviation 12 |
| Stenfilcon A Toric Lens | Handling | 1 week | 87 units on a scale | Standard Deviation 18 |
| Etafilcon A Toric Lens | Handling | Baseline | 81 units on a scale | Standard Deviation 16 |
| Etafilcon A Toric Lens | Handling | 1 week | 81 units on a scale | Standard Deviation 23 |
Primary
High Visual Acuity
High illumination high contrast (HIHC) visual acuity for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Visual acuity is measured by logMAR.
Time frame: Baseline and 1 Week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | High Visual Acuity | 1 week | -0.09 LogMAR | Standard Deviation 0.07 |
| Stenfilcon A Toric Lens | High Visual Acuity | Baseline | -0.10 LogMAR | Standard Deviation 0.06 |
| Etafilcon A Toric Lens | High Visual Acuity | 1 week | -0.09 LogMAR | Standard Deviation 0.07 |
| Etafilcon A Toric Lens | High Visual Acuity | Baseline | -0.08 LogMAR | Standard Deviation 0.06 |
Primary
Lens Durability
Lens durability (lens tearing) between stenfilcon A toric lens or etafilcon A toric lens assessed at 1 week. (The number of lens tear or lens nicks found during the one week study).
Time frame: 1 Week
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Stenfilcon A Toric Lens | Lens Durability | 1 Lens tear or nick |
| Etafilcon A Toric Lens | Lens Durability | 0 Lens tear or nick |
Primary
Lens Fit Acceptance
Lens fit acceptance (on eye stability) for stenfilcon A and etafilcon A assessed at baseline and 1 week. Scale 0-4, 0=Can't be worn, 1=Poor, 2=Fair, 3=Good, 4=optimum.
Time frame: Baseline and 1 Week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Lens Fit Acceptance | Baseline | 3.5 units on a scale | Standard Deviation 0.3 |
| Stenfilcon A Toric Lens | Lens Fit Acceptance | 1 week | 3.5 units on a scale | Standard Deviation 0.4 |
| Etafilcon A Toric Lens | Lens Fit Acceptance | Baseline | 3.4 units on a scale | Standard Deviation 0.3 |
| Etafilcon A Toric Lens | Lens Fit Acceptance | 1 week | 3.3 units on a scale | Standard Deviation 0.4 |
Primary
Lens Surface - Deposits
Lens surface of wettability for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Scale 0-4, 0=no deposits, 4=severe deposits.
Time frame: Baseline and 1 Week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Lens Surface - Deposits | Baseline | 0.09 units on a scale | Standard Deviation 0.23 |
| Stenfilcon A Toric Lens | Lens Surface - Deposits | 1 week | 0.18 units on a scale | Standard Deviation 0.28 |
| Etafilcon A Toric Lens | Lens Surface - Deposits | Baseline | 0.11 units on a scale | Standard Deviation 0.24 |
| Etafilcon A Toric Lens | Lens Surface - Deposits | 1 week | 0.25 units on a scale | Standard Deviation 0.37 |
Primary
Lens Surface - Wettability
Lens surface of wettability for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Scale 0-4, 0=severely reduced, 4=excellent wettability.
Time frame: Baseline and 1 Week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Lens Surface - Wettability | Baseline | 3.2 units on a scale | Standard Deviation 0.8 |
| Stenfilcon A Toric Lens | Lens Surface - Wettability | 1 week | 3.2 units on a scale | Standard Deviation 0.7 |
| Etafilcon A Toric Lens | Lens Surface - Wettability | Baseline | 3.4 units on a scale | Standard Deviation 0.5 |
| Etafilcon A Toric Lens | Lens Surface - Wettability | 1 week | 3.3 units on a scale | Standard Deviation 0.7 |
Primary
Low Visual Acuity
Low illumination high contrast (LIHC) visual acuity for stenfilcon A toric lens and etafilcon A toric lens assessed at baseline and 1 week. Visual acuity is measured by logMAR.
Time frame: Baseline and 1 Week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Low Visual Acuity | Baseline | -0.08 LogMAR | Standard Deviation 0.06 |
| Stenfilcon A Toric Lens | Low Visual Acuity | 1 week | -0.07 LogMAR | Standard Deviation 0.07 |
| Etafilcon A Toric Lens | Low Visual Acuity | Baseline | -0.07 LogMAR | Standard Deviation 0.06 |
| Etafilcon A Toric Lens | Low Visual Acuity | 1 week | -0.07 LogMAR | Standard Deviation 0.07 |
Primary
Vision
Subjective ratings of lens performance for vision assessed at baseline and 1 week. Scale 0-100, 0=extremely poor vision all of the time, cannot function, 100=excellent.
Time frame: Baseline and 1 Week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Vision | Baseline | 83 units on a scale | Standard Deviation 16 |
| Stenfilcon A Toric Lens | Vision | 1 week | 86 units on a scale | Standard Deviation 17 |
| Etafilcon A Toric Lens | Vision | 1 week | 83 units on a scale | Standard Deviation 17 |
| Etafilcon A Toric Lens | Vision | Baseline | 78 units on a scale | Standard Deviation 21 |
Secondary
Dryness
Subjective ratings of lens performance for dryness assessed during the day and at the end of the day. Scale 0-100, 0=cannot be worn, extremely dry, 100=no dryness experienced at any time.
Time frame: 1 Week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Dryness | During the Day | 82 units on a scale | Standard Deviation 18 |
| Stenfilcon A Toric Lens | Dryness | End of Day | 76 units on a scale | Standard Deviation 21 |
| Etafilcon A Toric Lens | Dryness | During the Day | 74 units on a scale | Standard Deviation 23 |
| Etafilcon A Toric Lens | Dryness | End of Day | 67 units on a scale | Standard Deviation 24 |
Secondary
Overall Satisfaction
Overall satisfaction of stenfilcon A and etafilcon A lenses. Scale 0-100, 0=extremely dissatisfied, 100=extremely satisfied.
Time frame: Baseline and 1 week
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Stenfilcon A Toric Lens | Overall Satisfaction | Baseline | 87 units on a scale | Standard Deviation 13 |
| Stenfilcon A Toric Lens | Overall Satisfaction | 1 week | 83 units on a scale | Standard Deviation 17 |
| Etafilcon A Toric Lens | Overall Satisfaction | Baseline | 80 units on a scale | Standard Deviation 16 |
| Etafilcon A Toric Lens | Overall Satisfaction | 1 week | 77 units on a scale | Standard Deviation 23 |