Fitting Evaluation of Hydrogel and Silicone Hydrogel Spherical Contact Lenses
Study Details
Study Description
Brief Summary
This study aims to compare the short-term clinical performance of the three contact lenses (Methafilcon A IV, Ocufilcon B 1-day and Omafilcon A 1-day daily disposable).
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
|
N/A |
Detailed Description
This will be a randomized, double-masked, crossover, bilateral non-dispensing study, controlled by cross-comparison. Forty subjects will wear each lens brand for approximately one hour, on three separate study days in random order. Lenses will only be worn during study visits.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Active Comparator: Methafilcon A IV Subjects are randomized to wear Methafilcon A IV for 1 hour during the cross over study. |
Device: Ocufilcon B
Contact Lens
Device: Omafilcon A
Contact Lens
|
Active Comparator: Ocufilcon B Subjects are randomized to wear Ocufilcon B for 1 hour during the cross over study. |
Device: Methafilcon A IV
Contact Lens
Device: Omafilcon A
Contact Lens
|
Active Comparator: Omafilcon A Subjects are randomized to wear Omafilcon A for 1 hour during the cross over study. |
Device: Methafilcon A IV
Contact Lens
Device: Ocufilcon B
Contact Lens
|
Outcome Measures
Primary Outcome Measures
- Visual Acuity Using logMAR [Dispense and follow-up, approximately one hour (1hr) of lens wear for each lens type worn]
Assessment of visual performance using the Bailey-Lovie logMAR visual acuity test chart and procedures for carrying out an over-refraction
- Lens Fit - Horizontal Centration [Dispense and follow-up, approximately one hour (1hr) of lens wear for each lens type worn]
Assessment of horizontal centration of lens on eye
- Lens Fit - Vertical Centration [Dispense and follow-up, approximately one hour (1hr) of lens wear for each lens type worn]
Assessment of vertical centration of lens on eye
- Lens Fit - Corneal Coverage of Lens [Dispense and follow-up, approximately one hour (1hr) of lens wear for each lens type worn]
Assessment of corneal coverage of lens on eye
- Lens Fit - Movement of Lens [Dispense and follow-up, approximately one hour (1hr) of lens wear for each lens type worn]
Assessment of movement of lens on eye
Eligibility Criteria
Criteria
Inclusion Criteria:
-
They are of aged 18-40 and have capacity to volunteer.
-
They understand their rights as a research subject and are willing and able to sign a Statement of Informed Consent.
-
They are willing and able to follow the protocol.
-
They agree not to participate in other clinical research for the duration of this study.
-
They have a contact lens spherical prescription between -1.00 to - 6.00D (inclusive)
-
They have a spectacle cylindrical correction of -0.75D or less in each eye (based on the ocular refraction).
-
They can attain at least 0.10 logMAR distance high contrast visual acuity in each eye with the study lenses within the available power range.
-
They currently use soft contact lenses or have done so in the previous six months.
Exclusion Criteria:
-
They have an ocular disorder which would normally contra-indicate contact lens wear.
-
They have a systemic disorder which would normally contra-indicate contact lens wear.
-
They are using any topical medication such as eye drops or ointment.
-
They have had cataract surgery.
-
They have had corneal refractive surgery.
-
They have any corneal distortion resulting from previous hard or rigid lens wear or have keratoconus.
-
They are pregnant or lactating.
-
They have any ocular abnormality which would, in the opinion of the investigator, normally contraindicate contact lens wear.
-
They have any infectious disease which would, in the opinion of the investigator, contraindicate contact lens wear or pose a risk to study personnel; or they have any immunosuppressive disease (e.g. HIV), or a history of anaphylaxis or severe allergic reaction.
-
They have taken part in any other contact lens or care solution clinical trial or research, within two weeks prior to starting this study.
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | Eurolens Research - The University of Manchester | Manchester | United Kingdom | M13 9PL |
Sponsors and Collaborators
- Coopervision, Inc.
Investigators
None specified.Study Documents (Full-Text)
More Information
Publications
None provided.- EX-MKTG-85
Study Results
Participant Flow
Recruitment Details | |
---|---|
Pre-assignment Detail |
Arm/Group Title | Methafilcon A IV, Ocufilcon B, Omafilcon A | Methafilcon A IV, Omafilcon A, Ocufilcon B | Ocufilcon B, Omafilcon A, Methafilcon A IV | Ocufilcon B, Methafilcon A IV, Omafilcon A | Omafilcon A, Ocufilcon B, Methafilcon A IV | Omafilcon A, Methafilcon A IV, Ocufilcon B |
---|---|---|---|---|---|---|
Arm/Group Description | Subjects randomized to wear Methafilcon A IV first, then Ocufilcon B, then Omafilcon A contact lens | Subjects randomized to wear Methafilcon A IV first, then Omafilcon A, then Ocufilcon B contact lens | Subjects randomized to wear Ocufilcon B first, then Omafilcon A, then Methafilcon A IV contact lens | Subjects randomized to wear Ocufilcon B first, then Methafilcon A IV, then Omafilcon A contact lens | Subjects randomized to wear Omafilcon A first, then Ocufilcon B, then Methafilcon A IV contact lens | Subjects randomized to wear Omafilcon A first, then Methafilcon A IV, then Ocufilcon B contact lens |
Period Title: First Intervention (1 Hour, Visit 2) | ||||||
STARTED | 9 | 6 | 7 | 6 | 6 | 6 |
COMPLETED | 9 | 6 | 7 | 6 | 6 | 5 |
NOT COMPLETED | 0 | 0 | 0 | 0 | 0 | 1 |
Period Title: First Intervention (1 Hour, Visit 2) | ||||||
STARTED | 9 | 6 | 7 | 6 | 6 | 5 |
COMPLETED | 9 | 6 | 7 | 6 | 6 | 5 |
NOT COMPLETED | 0 | 0 | 0 | 0 | 0 | 0 |
Period Title: First Intervention (1 Hour, Visit 2) | ||||||
STARTED | 9 | 6 | 7 | 6 | 6 | 5 |
COMPLETED | 9 | 6 | 7 | 6 | 6 | 5 |
NOT COMPLETED | 0 | 0 | 0 | 0 | 0 | 0 |
Baseline Characteristics
Arm/Group Title | All Study Participants |
---|---|
Arm/Group Description | All study participants were randomized to wear each of the 3 different contact lens pairs |
Overall Participants | 40 |
Age (years) [Mean (Standard Deviation) ] | |
Mean (Standard Deviation) [years] |
29.0
(6.4)
|
Sex: Female, Male (Count of Participants) | |
Female |
26
65%
|
Male |
14
35%
|
Race and Ethnicity Not Collected (Count of Participants) |
Outcome Measures
Title | Visual Acuity Using logMAR |
---|---|
Description | Assessment of visual performance using the Bailey-Lovie logMAR visual acuity test chart and procedures for carrying out an over-refraction |
Time Frame | Dispense and follow-up, approximately one hour (1hr) of lens wear for each lens type worn |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Omafilcon A | Methafilcon A IV | Ocufilcon B |
---|---|---|---|
Arm/Group Description | Subjects who wore Omafilcon A for 1 hour during the cross over study. | Subjects who wore Methafilcon A IV for 1 hour as one of the 3 lenses in this crossover study. | Subjects who wore Ocufilcon B for 1 hour as one of the 3 lenses in this crossover study. |
Measure Participants | 40 | 39 | 39 |
At Dispense |
-0.14
(0.09)
|
-0.13
(0.07)
|
-0.13
(0.07)
|
Follow Up |
-0.14
(0.07)
|
-0.14
(0.07)
|
-0.14
(0.07)
|
Title | Lens Fit - Horizontal Centration |
---|---|
Description | Assessment of horizontal centration of lens on eye |
Time Frame | Dispense and follow-up, approximately one hour (1hr) of lens wear for each lens type worn |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Omafilcon A | Methafilcon A IV | Ocufilcon B |
---|---|---|---|
Arm/Group Description | Subjects who wore Omafilcon A for 1 hour during the cross over study. | Subjects who wore Methafilcon A IV for 1 hour as one of the 3 lenses in this crossover study. | Subjects who wore Ocufilcon B for 1 hour as one of the 3 lenses in this crossover study. |
Measure Participants | 40 | 39 | 39 |
Extremely nasal |
0
0%
|
0
NaN
|
0
NaN
|
Slightly nasal |
1
2.5%
|
1
NaN
|
1
NaN
|
Optimum |
23
57.5%
|
17
NaN
|
26
NaN
|
Slightly temporal |
16
40%
|
21
NaN
|
12
NaN
|
Extremely temporal |
0
0%
|
0
NaN
|
0
NaN
|
Extremely nasal |
0
0%
|
0
NaN
|
0
NaN
|
Slightly nasal |
1
2.5%
|
2
NaN
|
0
NaN
|
Optimum |
22
55%
|
14
NaN
|
26
NaN
|
Slightly temporal |
17
42.5%
|
22
NaN
|
13
NaN
|
Extremely temporal |
0
0%
|
1
NaN
|
0
NaN
|
Title | Lens Fit - Vertical Centration |
---|---|
Description | Assessment of vertical centration of lens on eye |
Time Frame | Dispense and follow-up, approximately one hour (1hr) of lens wear for each lens type worn |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Omafilcon A | Methafilcon A IV | Ocufilcon B |
---|---|---|---|
Arm/Group Description | Subjects who wore Omafilcon A for 1 hour during the cross over study. | Subjects who wore Methafilcon A IV for 1 hour as one of the 3 lenses in this crossover study. | Subjects who wore Ocufilcon B for 1 hour as one of the 3 lenses in this crossover study. |
Measure Participants | 40 | 39 | 39 |
Extremely inferior |
0
0%
|
0
NaN
|
0
NaN
|
Slightly inferior |
12
30%
|
6
NaN
|
9
NaN
|
Optimum |
20
50%
|
9
NaN
|
27
NaN
|
Slightly superior |
8
20%
|
24
NaN
|
3
NaN
|
Extremely superior |
0
0%
|
0
NaN
|
0
NaN
|
Extremely inferior |
0
0%
|
0
NaN
|
0
NaN
|
Slightly inferior |
15
37.5%
|
4
NaN
|
11
NaN
|
Optimum |
18
45%
|
14
NaN
|
26
NaN
|
Slightly superior |
7
17.5%
|
21
NaN
|
2
NaN
|
Extremely superior |
0
0%
|
0
NaN
|
0
NaN
|
Title | Lens Fit - Corneal Coverage of Lens |
---|---|
Description | Assessment of corneal coverage of lens on eye |
Time Frame | Dispense and follow-up, approximately one hour (1hr) of lens wear for each lens type worn |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Omafilcon A | Methafilcon A IV | Ocufilcon B |
---|---|---|---|
Arm/Group Description | Subjects who wore Omafilcon A for 1 hour during the cross over study. | Subjects who wore Methafilcon A IV for 1 hour as one of the 3 lenses in this crossover study. | Subjects who wore Ocufilcon B for 1 hour as one of the 3 lenses in this crossover study. |
Measure Participants | 40 | 39 | 39 |
Extremely inadequate |
0
0%
|
0
NaN
|
0
NaN
|
Slightly inadequate |
6
15%
|
16
NaN
|
4
NaN
|
Optimum |
29
72.5%
|
22
NaN
|
30
NaN
|
Slightly excessive |
5
12.5%
|
1
NaN
|
5
NaN
|
Extremely excessive |
0
0%
|
0
NaN
|
0
NaN
|
Extremely inadequate |
0
0%
|
1
NaN
|
0
NaN
|
Slightly inadequate |
5
12.5%
|
13
NaN
|
4
NaN
|
Optimum |
30
75%
|
24
NaN
|
30
NaN
|
Slightly excessive |
5
12.5%
|
1
NaN
|
5
NaN
|
Extremely excessive |
0
0%
|
0
NaN
|
0
NaN
|
Title | Lens Fit - Movement of Lens |
---|---|
Description | Assessment of movement of lens on eye |
Time Frame | Dispense and follow-up, approximately one hour (1hr) of lens wear for each lens type worn |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Omafilcon A | Methafilcon A IV | Ocufilcon B |
---|---|---|---|
Arm/Group Description | Subjects who wore Omafilcon A for 1 hour during the cross over study. | Subjects who wore Methafilcon A IV for 1 hour as one of the 3 lenses in this crossover study. | Subjects who wore Ocufilcon B for 1 hour as one of the 3 lenses in this crossover study. |
Measure Participants | 40 | 39 | 39 |
Extremely inadequate |
0
0%
|
0
NaN
|
0
NaN
|
Slightly inadequate |
1
2.5%
|
7
NaN
|
8
NaN
|
Optimum |
24
60%
|
25
NaN
|
16
NaN
|
Slightly excessive |
15
37.5%
|
7
NaN
|
15
NaN
|
Extremely excessive |
0
0%
|
0
NaN
|
0
NaN
|
Extremely inadequate |
0
0%
|
0
NaN
|
0
NaN
|
Slightly inadequate |
2
5%
|
2
NaN
|
1
NaN
|
Optimum |
23
57.5%
|
28
NaN
|
19
NaN
|
Slightly excessive |
15
37.5%
|
9
NaN
|
19
NaN
|
Extremely excessive |
0
0%
|
0
NaN
|
0
NaN
|
Adverse Events
Time Frame | Patients wore 3 different contact lenses for 1 hour on 3 different days | |||||
---|---|---|---|---|---|---|
Adverse Event Reporting Description | ||||||
Arm/Group Title | Omafilcon A | Methafilcon A IV | Ocufilcon B | |||
Arm/Group Description | Subjects who wore Omafilcon A for 1 hour during the cross over study. | Subjects who wore Methafilcon A IV for 1 hour as one of the 3 lenses in this crossover study. | Subjects who wore Ocufilcon B for 1 hour as one of the 3 lenses in this crossover study. | |||
All Cause Mortality |
||||||
Omafilcon A | Methafilcon A IV | Ocufilcon B | ||||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/40 (0%) | 0/39 (0%) | 0/39 (0%) | |||
Serious Adverse Events |
||||||
Omafilcon A | Methafilcon A IV | Ocufilcon B | ||||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/40 (0%) | 0/39 (0%) | 0/39 (0%) | |||
Other (Not Including Serious) Adverse Events |
||||||
Omafilcon A | Methafilcon A IV | Ocufilcon B | ||||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/40 (0%) | 0/39 (0%) | 0/39 (0%) |
Limitations/Caveats
More Information
Certain Agreements
Principal Investigators are NOT employed by the organization sponsoring the study.
Disclosure restriction on the PI is that the sponsor should be notified of any use of data for results communication.
Results Point of Contact
Name/Title | Jose Vega, O.D., MSc., FAAO |
---|---|
Organization | CooperVision |
Phone | 9256213761 |
javega@coopervision.com |
- EX-MKTG-85