One Week Assessment of The Phenacite Lens
Study Details
Study Description
Brief Summary
This study will investigate performance criteria over one week of daily wear to determine if the Study Test contact lens performs equivalently to the comfilcon A contact lenses in terms of subjective ratings and of visual performance.
The study test lens was not the final optical design and the study results were not used for the design validation.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
|
N/A |
Detailed Description
This will be double-masked, randomized, bilateral crossover study comparing the Study Test lens against the comfilcon A control lens, each worn over one week of daily wear.
The study test lens was not the final optical design and the study results were not used for the design validation.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Experimental: Phenacite contact lens Study Test Contact Lens |
Device: Phenacite (Test) contact lens
|
Active Comparator: comfilcon A contact lens Control Contact Lens |
Device: comfilcon A contact lens
|
Outcome Measures
Primary Outcome Measures
- Binocular Distance Visual Acuity (VA) - High Illumination High Contrast [Baseline - After 5 minutes of lens settling]
Binocular Distance visual acuity High Illumination High Contrast was assessed using logMAR (0.02 logMAR= 1 letter)
- Binocular Distance Visual Acuity (VA) -High Illumination High Contrast [1 week]
Binocular Distance visual acuity High Illumination High Contrast was assessed using logMAR (0.02 logMAR= 1 letter)
- Binocular Near Visual Acuity (VA) - High Illumination High Contrast [Baseline - after 5 minutes of lens dispense]
Binocular Near Visual Acuity High Illumination High Contrast was assessed on logMAR VA (0.02 logMAR= 1 letter)
- Binocular Near Visual Acuity (VA) - High Illumination High Contrast [1-week]
Binocular Near Visual Acuity High Illumination High Contrast was assessed on logMAR VA (0.02 logMAR= 1 letter)
- Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast [Baseline (After 5 minutes of lens settling)]
Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)
- Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast [1 week]
Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)
- Binocular Near Visual Acuity (VA) - Low Illumination High Contrast [Baseline (after 5 minutes of lens settling)]
Binocular Near Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)
- Binocular Near Visual Acuity (VA) - Low Illumination High Contrast [1week]
Binocular Near Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter)
- Subjective Ratings for Distance Quality of Vision [1 week]
Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Distance Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time)
- Subjective Ratings for Intermediate Quality of Vision [1 week]
Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Intermediate Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time)
- Subjective Ratings for Near Quality of Vision [1 week]
Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Near Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time)
Secondary Outcome Measures
- Post Blink Movement - [Baseline (After 5 minutes of lens dispense)]
Post blink movement was assessed by the investigator by the amount of movement (to the nearest 0.1mm) immediately after the blink (0.1mm steps)
- Post Blink Movement [1 week]
Investigator assessment of Amount of movement (to the nearest 0.1mm) immediately after the blink (0.1mm steps)
- Push - Up Test for Lens Tightness [Baseline (After 5 minutes of lens dispense)]
Investigator assessment using Continuous Scale 0-100% (1% steps): 0%=Falls from cornea without lid support, 50%=Optimum, 100%=No movement
- Push - Up Test for Lens Tightness [1 week]
Investigator assessment using Continuous Scale 0-100% (1% steps): 0%=Falls from cornea without lid support, 50%=Optimum, 100%=No movement
- Lens Mobility Rating [Baseline (after 5 minutes of lens dispense)]
Investigator assessment using 5 Categories in 0.50 steps: 0=Immobile - no lag in any versions, 1=Restricted - no lag in some directions but slight lag (0-0.25mm) in others, 2=Secure - slight lag (0.25-0.5mm in each version), 3=Unrestricted - freely lags in a controlled manner on all versions, but not excessive (0.5-1.0mm), 4=Very mobile - excessive lag (>1mm) on versions in all directions in 0.25 steps
- Lens Mobility Rating [1 week]
Investigator assessment using 5 Categories in 0.50 steps: 0=Immobile - no lag in any versions, 1=Restricted - no lag in some directions but slight lag (0-0.25mm) in others, 2=Secure - slight lag (0.25-0.5mm in each version), 3=Unrestricted - freely lags in a controlled manner on all versions, but not excessive (0.5-1.0mm), 4=Very mobile - excessive lag (>1mm) on versions in all directions in 0.25 steps
- Overall Lens Fit Acceptance [Baseline (After 5 minutes of lens dispense)]
Investigator assessment using 5 Categories in 0.25 steps: 0=Can't be worn, 1=Poor - should not be dispensed although no immediate danger, 2=Fair, 3=Good, 4=Optimum in 0.25 steps
- Overall Lens Fit Acceptance [1 week]
Investigator assessment using 5 Categories in 0.25 steps: 0=Can't be worn,, 1=Poor - should not be dispensed although no immediate danger, 2=Fair, 3=Good, 4=Optimum in 0.25 steps
- Subjective Lens Preference - Distance Vision [1 week]
Patient subjective preference: Phenacite lens, comfilcon A or No Preference
- Subjective Lens Preference -Overall Vision Preference [1 week]
Patient subjective preference: Phenacite test lens, comfilcon A or No Preference
- Subjective Lens Preference - Comfort [1 week]
Patient subjective preference: Phenacite test lens, comfilcon A or No Preference
- Subjective Overall Lens Preference [1 week]
Patient subjective overall preference: Phenacite test lens, comfilcon A or No Preference
Eligibility Criteria
Criteria
Inclusion Criteria:
-
A person is eligible for inclusion in the study if he/she:
-
Oculo-visual examination in the last two years
-
Between 18 and 35 years of age and has full legal capacity to volunteer
-
Has read and understood the informed consent letter
-
Is willing and able to follow instructions and maintain the appointment schedule
-
Is correctable to a visual acuity of 20/25 or better (in each eye) with their habitual correction or 20/20 best corrected
-
Currently wears, or has previously successfully worn, soft contact lenses between -1.00D (Diopter) and -4.50D
-
Spherical Contact Lens Rx between -1.00 and -4.00 and spectacle cylinder <-0.75
-
Currently spends a minimum of 4 hours a day; 5 days a week on digital devices and can replicate this time during the study period
-
Is willing and able to wear the study contact lenses a minimum of 10 hours per day; 5 days a week.
Exclusion Criteria:
-
A person will be excluded from the study if he/she:
-
Has never worn contact lenses before.
-
Has any systemic disease affecting ocular health.
-
Is using any systemic or topical medications that will affect ocular health.
-
Has any ocular pathology or severe insufficiency of lacrimal secretion (moderate to severe dry eyes) that would affect the wearing of contact lenses.
-
Has persistent, clinically significant corneal or conjunctival staining using sodium fluorescein dye.
-
Has any clinically significant lid or conjunctival abnormalities, active neovascularization or any central corneal scars.
-
Is aphakic.
-
Has undergone corneal refractive surgery.
-
Is participating in any other type of eye related clinical or research study.
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | Clinical Optics Research Lab (CORL) Indiana University School of Optometry, Indiana University | Bloomington | Indiana | United States | 47405 |
Sponsors and Collaborators
- Coopervision, Inc.
Investigators
- Principal Investigator: Peter Kollbaum, OD, PhD, Clinical Optics Research Lab (CORL)
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- CV-15-40
Study Results
Participant Flow
Recruitment Details | |
---|---|
Pre-assignment Detail |
Arm/Group Title | Phenacite Contact Lens Then Comfilcon A | Comfilcon A Contact Lens Then Phenacite Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test lenses for one week and then cross-over to comfilcon A contact lens for one week. Phenacite : Contact Lens comfilcon A: contact lens | Subjects were randomized to wear comfilcon A lenses for one week and then cross-over to test contact lens for one week. comfilcon A: contact lens Phenacite : Contact Lens |
Period Title: First Intervention | ||
STARTED | 12 | 18 |
COMPLETED | 12 | 18 |
NOT COMPLETED | 0 | 0 |
Period Title: First Intervention | ||
STARTED | 12 | 18 |
COMPLETED | 12 | 18 |
NOT COMPLETED | 0 | 0 |
Baseline Characteristics
Arm/Group Title | Overall Study |
---|---|
Arm/Group Description | Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week. |
Overall Participants | 30 |
Age (Count of Participants) | |
<=18 years |
0
0%
|
Between 18 and 65 years |
30
100%
|
>=65 years |
0
0%
|
Age (years) [Mean (Standard Deviation) ] | |
Mean (Standard Deviation) [years] |
25
(3)
|
Sex: Female, Male (Count of Participants) | |
Female |
24
80%
|
Male |
6
20%
|
Race and Ethnicity Not Collected (Count of Participants) | |
Region of Enrollment (participants) [Number] | |
United States |
30
100%
|
Outcome Measures
Title | Binocular Distance Visual Acuity (VA) - High Illumination High Contrast |
---|---|
Description | Binocular Distance visual acuity High Illumination High Contrast was assessed using logMAR (0.02 logMAR= 1 letter) |
Time Frame | Baseline - After 5 minutes of lens settling |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Mean (Standard Deviation) [logMAR] |
-0.22
(0.05)
|
-0.24
(0.05)
|
Title | Binocular Distance Visual Acuity (VA) -High Illumination High Contrast |
---|---|
Description | Binocular Distance visual acuity High Illumination High Contrast was assessed using logMAR (0.02 logMAR= 1 letter) |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Mean (Standard Deviation) [logMAR] |
-0.20
(0.05)
|
-0.22
(0.06)
|
Title | Binocular Near Visual Acuity (VA) - High Illumination High Contrast |
---|---|
Description | Binocular Near Visual Acuity High Illumination High Contrast was assessed on logMAR VA (0.02 logMAR= 1 letter) |
Time Frame | Baseline - after 5 minutes of lens dispense |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Mean (Standard Deviation) [logMAR] |
-0.18
(0.06)
|
-0.19
(0.07)
|
Title | Binocular Near Visual Acuity (VA) - High Illumination High Contrast |
---|---|
Description | Binocular Near Visual Acuity High Illumination High Contrast was assessed on logMAR VA (0.02 logMAR= 1 letter) |
Time Frame | 1-week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Mean (Standard Deviation) [logMAR] |
-0.19
(0.06)
|
-0.19
(0.06)
|
Title | Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast |
---|---|
Description | Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter) |
Time Frame | Baseline (After 5 minutes of lens settling) |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Mean (Standard Deviation) [LogMAR] |
-0.02
(0.05)
|
-0.04
(0.07)
|
Title | Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast |
---|---|
Description | Binocular Distance Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter) |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Mean (Standard Deviation) [LogMAR] |
0.00
(0.08)
|
-0.04
(0.06)
|
Title | Binocular Near Visual Acuity (VA) - Low Illumination High Contrast |
---|---|
Description | Binocular Near Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter) |
Time Frame | Baseline (after 5 minutes of lens settling) |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Mean (Standard Deviation) [LogMAR] |
-0.00
(0.07)
|
0.00
(0.07)
|
Title | Binocular Near Visual Acuity (VA) - Low Illumination High Contrast |
---|---|
Description | Binocular Near Visual Acuity (VA) - Low Illumination High Contrast was assessed using logMAR VA (0.02 logMAR= 1 letter) |
Time Frame | 1week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Mean (Standard Deviation) [LogMAR] |
-0.01
(0.08)
|
-0.00
(0.06)
|
Title | Subjective Ratings for Distance Quality of Vision |
---|---|
Description | Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Distance Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time) |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Overall Study |
---|---|
Arm/Group Description | Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week. |
Measure Participants | 30 |
Phenacite Test Contact Lens |
85
(15)
|
comfilcon A control lens |
91
(9)
|
Title | Subjective Ratings for Intermediate Quality of Vision |
---|---|
Description | Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Intermediate Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time) |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Overall Study |
---|---|
Arm/Group Description | Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week. |
Measure Participants | 30 |
Phenacite Test Lens |
91
(10)
|
comfilcon A control lens |
95
(7)
|
Title | Subjective Ratings for Near Quality of Vision |
---|---|
Description | Patient subjective scoring using anchors on the scale to provide a score between 0-100 for Near Quality of Vision: (0=extremely poor vision all of the time. Cannot function; 20= Frequently annoying vision problems; 40=Occasionally annoying vision problems; 60=occasionally noticeable but not annoying vision problems; 80=rarely noticeable vision problems; 100=excellent vision all of the time) |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Overall Study |
---|---|
Arm/Group Description | Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week. |
Measure Participants | 30 |
Phenacite Test Lens |
92
(11)
|
comfilcon A control lens |
95
(6)
|
Title | Post Blink Movement - |
---|---|
Description | Post blink movement was assessed by the investigator by the amount of movement (to the nearest 0.1mm) immediately after the blink (0.1mm steps) |
Time Frame | Baseline (After 5 minutes of lens dispense) |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Right eye |
0.23
(0.06)
|
0.24
(0.08)
|
Left eye |
0.23
(0.06)
|
0.25
(0.08)
|
Title | Post Blink Movement |
---|---|
Description | Investigator assessment of Amount of movement (to the nearest 0.1mm) immediately after the blink (0.1mm steps) |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Right eye |
0.24
(0.06)
|
0.24
(0.07)
|
Left Eye |
0.25
(0.08)
|
0.25
(0.06)
|
Title | Push - Up Test for Lens Tightness |
---|---|
Description | Investigator assessment using Continuous Scale 0-100% (1% steps): 0%=Falls from cornea without lid support, 50%=Optimum, 100%=No movement |
Time Frame | Baseline (After 5 minutes of lens dispense) |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Right eye |
50.83
(4.17)
|
49.67
(2.92)
|
Left Eye |
50.33
(4.14)
|
49.17
(3.49)
|
Title | Push - Up Test for Lens Tightness |
---|---|
Description | Investigator assessment using Continuous Scale 0-100% (1% steps): 0%=Falls from cornea without lid support, 50%=Optimum, 100%=No movement |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Right Eye |
50.33
(4.14)
|
49.17
(3.73)
|
Left eye |
49.33
(6.53)
|
49.17
(2.65)
|
Title | Lens Mobility Rating |
---|---|
Description | Investigator assessment using 5 Categories in 0.50 steps: 0=Immobile - no lag in any versions, 1=Restricted - no lag in some directions but slight lag (0-0.25mm) in others, 2=Secure - slight lag (0.25-0.5mm in each version), 3=Unrestricted - freely lags in a controlled manner on all versions, but not excessive (0.5-1.0mm), 4=Very mobile - excessive lag (>1mm) on versions in all directions in 0.25 steps |
Time Frame | Baseline (after 5 minutes of lens dispense) |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Right eye |
2.97
(0.20)
|
3.00
(0.26)
|
Left eye |
2.97
(0.22)
|
3.02
(0.25)
|
Title | Lens Mobility Rating |
---|---|
Description | Investigator assessment using 5 Categories in 0.50 steps: 0=Immobile - no lag in any versions, 1=Restricted - no lag in some directions but slight lag (0-0.25mm) in others, 2=Secure - slight lag (0.25-0.5mm in each version), 3=Unrestricted - freely lags in a controlled manner on all versions, but not excessive (0.5-1.0mm), 4=Very mobile - excessive lag (>1mm) on versions in all directions in 0.25 steps |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Right Eye |
2.98
(0.25)
|
3.04
(0.16)
|
Left eye |
3.02
(0.31)
|
3.04
(0.16)
|
Title | Overall Lens Fit Acceptance |
---|---|
Description | Investigator assessment using 5 Categories in 0.25 steps: 0=Can't be worn, 1=Poor - should not be dispensed although no immediate danger, 2=Fair, 3=Good, 4=Optimum in 0.25 steps |
Time Frame | Baseline (After 5 minutes of lens dispense) |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Right Eye |
3.48
(0.22)
|
3.42
(0.36)
|
Left Eye |
3.46
(0.22)
|
3.44
(0.33)
|
Title | Overall Lens Fit Acceptance |
---|---|
Description | Investigator assessment using 5 Categories in 0.25 steps: 0=Can't be worn,, 1=Poor - should not be dispensed although no immediate danger, 2=Fair, 3=Good, 4=Optimum in 0.25 steps |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens |
---|---|---|
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens |
Measure Participants | 30 | 30 |
Right eye |
3.42
(0.28)
|
3.48
(0.28)
|
Left Eye |
3.35
(0.52)
|
3.49
(0.28)
|
Title | Subjective Lens Preference - Distance Vision |
---|---|
Description | Patient subjective preference: Phenacite lens, comfilcon A or No Preference |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Overall Study |
---|---|
Arm/Group Description | Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week. |
Measure Participants | 30 |
Phenacite Lens |
17
56.7%
|
comfilcon A |
50
166.7%
|
No preference |
33
110%
|
Title | Subjective Lens Preference -Overall Vision Preference |
---|---|
Description | Patient subjective preference: Phenacite test lens, comfilcon A or No Preference |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Overall Study |
---|---|
Arm/Group Description | Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week. |
Measure Participants | 30 |
Phenacite |
27
90%
|
comfilcon A |
56
186.7%
|
No Preference |
17
56.7%
|
Title | Subjective Lens Preference - Comfort |
---|---|
Description | Patient subjective preference: Phenacite test lens, comfilcon A or No Preference |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Overall Study |
---|---|
Arm/Group Description | Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week. |
Measure Participants | 30 |
Phenacite |
43
143.3%
|
comfilcon A |
40
133.3%
|
No preference |
17
56.7%
|
Title | Subjective Overall Lens Preference |
---|---|
Description | Patient subjective overall preference: Phenacite test lens, comfilcon A or No Preference |
Time Frame | 1 week |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Overall Study |
---|---|
Arm/Group Description | Subjects were randomized to wear test lens for one week and then cross-over to control lens for one week. |
Measure Participants | 30 |
Phenacite |
33
110%
|
comfilcon A |
57
190%
|
No preference |
10
33.3%
|
Adverse Events
Time Frame | From dispense up to one week on each study lens, a total of 2 weeks. | |||
---|---|---|---|---|
Adverse Event Reporting Description | ||||
Arm/Group Title | Phenacite Contact Lens | Comfilcon A Contact Lens | ||
Arm/Group Description | Subjects were randomized to wear test contact lens for one week. Phenacite: Contact lens | Subjects were randomized to wear control contact lens for one week. comfilcon A: contact lens | ||
All Cause Mortality |
||||
Phenacite Contact Lens | Comfilcon A Contact Lens | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/30 (0%) | 0/30 (0%) | ||
Serious Adverse Events |
||||
Phenacite Contact Lens | Comfilcon A Contact Lens | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/30 (0%) | 0/30 (0%) | ||
Other (Not Including Serious) Adverse Events |
||||
Phenacite Contact Lens | Comfilcon A Contact Lens | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/30 (0%) | 0/30 (0%) |
Limitations/Caveats
More Information
Certain Agreements
Principal Investigators are NOT employed by the organization sponsoring the study.
There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
Results Point of Contact
Name/Title | Paul Chamberlain |
---|---|
Organization | CooperVision Inc. |
Phone | 925 730-6754 |
PChamberlain@coopervision.com |
- CV-15-40