A Lifestyle Investigation With Spectacles and Daily Disposable Contact Lenses in Young Patients
Study Details
Study Description
Brief Summary
The purpose of this study was to evaluate the relative benefits of daily disposable contact lenses versus spectacles in young adults.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
|
N/A |
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Experimental: nelfilcon A Nelfilcon A contact lenses worn in both eyes on a daily disposable basis a minimum of five days per week, eight hours per day, for six months |
Device: nelfilcon A contact lens
Commercially marketed, single vision, soft contact lens for daily disposable wear
Other Names:
|
Active Comparator: Spectacles Spectacles per current prescription worn a minimum of five days per week, eight hours per day, for six months |
Other: Spectacles
Spectacles per current prescription
|
Outcome Measures
Primary Outcome Measures
- Subjective Happiness With Correction Type [Month 6]
Participant responded to an SMS message: "Please rate your happiness (H) and vision (V) with your [contact lenses/spectacles]: 1=very poor; 2=poor; 3=neither; 4=good; and 5=very good. eg H2V4. Please send N if in you are not wearing [contact lenses/spectacles]."
- Subjective Vision With Correction Type [Month 6]
Participant responded to an SMS message: "Please rate your happiness (H) and vision (V) with your [contact lenses/spectacles]: 1=very poor; 2=poor; 3=neither; 4=good; and 5=very good. eg H2V4. Please send N if in you are not wearing [contact lenses/spectacles]."
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Understands rights as a research subject and willing and able to sign a Statement of Informed Consent, or if under 18, parent or guardian understands rights and is willing and able to sign a Statement of Informed Consent.
-
Willing and able to follow the protocol.
-
Currently wearing spectacles full-time (at least five days per week, eight hours per day).
-
Has never worn contact lenses (more than one day) before.
-
Agrees to not participate in other clinical research for the duration of this study.
-
Can attain at least 6/9 in each eye with the study optical correction.
-
Can be fitted with study lenses in the available power range (contact lens group) or can select a satisfactory spectacle lens frame and lenses (spectacle group).
-
Willing and able to wear the study lenses or spectacles for a minimum of five days per week, eight hours per day.
-
Owns or has regular access to a mobile phone and is familiar with SMS text messaging.
-
Has an up-to-date and functional pair of spectacles at time of enrollment.
-
Other protocol-defined inclusion criteria may apply.
Exclusion Criteria:
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Has an ocular or systemic disorder that would normally contraindicate contact lens wear.
-
Is using any topical medication such as eye drops or ointment.
-
Has had corneal refractive surgery.
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Has had cataract surgery.
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Has diabetes.
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Has taken part in other clinical research within two weeks of starting the study.
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Other protocol-defined exclusion criteria may apply.
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | Eurolens Research | Manchester | United Kingdom | M13 9PT |
Sponsors and Collaborators
- CIBA VISION
- University of Manchester
Investigators
- Principal Investigator: Philip Morgan, PhD MCOptom FAAO FBCLA, University of Manchester
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- P-370-C-091 / CB11-500
Study Results
Participant Flow
Recruitment Details | Participants were enrolled from one study center in the United Kingdom. |
---|---|
Pre-assignment Detail | Of the 113 participants enrolled, 3 were exited as screen failures prior to randomization. This reporting group includes all enrolled and randomized participants (110). |
Arm/Group Title | Nelfilcon A | Spectacles |
---|---|---|
Arm/Group Description | Nelfilcon A contact lenses worn in both eyes on a daily disposable basis a minimum of five days per week, eight hours per day, for six months | Spectacles per current prescription worn a minimum of five days per week, eight hours per day, for six months |
Period Title: Overall Study | ||
STARTED | 57 | 53 |
COMPLETED | 47 | 50 |
NOT COMPLETED | 10 | 3 |
Baseline Characteristics
Arm/Group Title | Nelfilcon A | Spectacles | Total |
---|---|---|---|
Arm/Group Description | Nelfilcon A contact lenses worn in both eyes on a daily disposable basis a minimum of five days per week, eight hours per day, for six months | Spectacles per current prescription worn a minimum of five days per week, eight hours per day, for six months | Total of all reporting groups |
Overall Participants | 57 | 53 | 110 |
Age (years) [Mean (Standard Deviation) ] | |||
Mean (Standard Deviation) [years] |
16.2
(1.8)
|
16.3
(2.0)
|
16.2
(1.9)
|
Sex: Female, Male (Count of Participants) | |||
Female |
32
56.1%
|
31
58.5%
|
63
57.3%
|
Male |
25
43.9%
|
22
41.5%
|
47
42.7%
|
Region of Enrollment (participants) [Number] | |||
United Kingdom |
57
100%
|
53
100%
|
110
100%
|
Outcome Measures
Title | Subjective Happiness With Correction Type |
---|---|
Description | Participant responded to an SMS message: "Please rate your happiness (H) and vision (V) with your [contact lenses/spectacles]: 1=very poor; 2=poor; 3=neither; 4=good; and 5=very good. eg H2V4. Please send N if in you are not wearing [contact lenses/spectacles]." |
Time Frame | Month 6 |
Outcome Measure Data
Analysis Population Description |
---|
This reporting group includes all participants who sent in an SMS response. |
Arm/Group Title | Nelfilcon A | Spectacles |
---|---|---|
Arm/Group Description | Nelfilcon A contact lenses worn in both eyes on a daily disposable basis a minimum of five days per week, eight hours per day, for six months | Spectacles per current prescription worn a minimum of five days per week, eight hours per day, for six months |
Measure Participants | 14 | 21 |
Mean (Standard Deviation) [Units on a Scale] |
4.92
(0.3)
|
4.50
(0.9)
|
Title | Subjective Vision With Correction Type |
---|---|
Description | Participant responded to an SMS message: "Please rate your happiness (H) and vision (V) with your [contact lenses/spectacles]: 1=very poor; 2=poor; 3=neither; 4=good; and 5=very good. eg H2V4. Please send N if in you are not wearing [contact lenses/spectacles]." |
Time Frame | Month 6 |
Outcome Measure Data
Analysis Population Description |
---|
This reporting group includes all participants who sent in an SMS response. |
Arm/Group Title | Nelfilcon A | Spectacles |
---|---|---|
Arm/Group Description | Nelfilcon A contact lenses worn in both eyes on a daily disposable basis a minimum of five days per week, eight hours per day, for six months | Spectacles per current prescription worn a minimum of five days per week, eight hours per day, for six months |
Measure Participants | 14 | 21 |
Mean (Standard Deviation) [Units on a scale] |
4.5
(0.7)
|
4.5
(0.8)
|
Adverse Events
Time Frame | Adverse events were collected for the duration of the study (9 months). An adverse event was defined as any unfavourable or unintended sign or symptom associated with the use of a contact lens, but not necessarily caused by the contact lens. | |||
---|---|---|---|---|
Adverse Event Reporting Description | This reporting group includes all enrolled and randomized participants. | |||
Arm/Group Title | Nelfilcon A | Spectacles | ||
Arm/Group Description | Nelfilcon A contact lenses worn in both eyes on a daily disposable basis a minimum of five days per week, eight hours per day, for six months | Spectacles per current prescription worn a minimum of five days per week, eight hours per day, for six months | ||
All Cause Mortality |
||||
Nelfilcon A | Spectacles | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | / (NaN) | / (NaN) | ||
Serious Adverse Events |
||||
Nelfilcon A | Spectacles | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/57 (0%) | 0/53 (0%) | ||
Other (Not Including Serious) Adverse Events |
||||
Nelfilcon A | Spectacles | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 4/57 (7%) | 0/53 (0%) | ||
Eye disorders | ||||
Corneal inflammatory event | 4/57 (7%) | 0/53 (0%) |
Limitations/Caveats
More Information
Certain Agreements
Principal Investigators are NOT employed by the organization sponsoring the study.
Sponsor reserves the right of prior review of any publication or presentation of information related to the study.
Results Point of Contact
Name/Title | Jami Kern, PhD |
---|---|
Organization | Alcon Research, Ltd. |
Phone | 1-888-451-3937 |
alcon.medinfo@alcon.com |
- P-370-C-091 / CB11-500