Investigation of Ocular Signs & Symptoms in Wearers Fitted With Contact Lenses Following Digital Device Use

June 18, 2018 updated by: Johnson & Johnson Vision Care, Inc.
The objective of this study is to assess how various silicone hydrogel lenses perform when worn by subjects who are heavy digital device users.

Study Overview

Study Type

Interventional

Enrollment (Actual)

52

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Ontario
      • Waterloo, Ontario, Canada, N2I3G1

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 40 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. The subject must read, understand and sign the statement of Informed Consent and receive a fully executed copy of the form.
  2. The subject must be between 18 and 40 years of age.
  3. The subject's vertex corrected spherical equivalent distance refraction must be in the range of -0.50D to -8.00D in each eye.
  4. The subject's refractive cylinder must be no more than -1.25 D cylindrical correction in each eye after vertexing to the corneal plane.
  5. The subject must have best corrected visual acuity of 0.20 or better in each eye.
  6. The subject must be a current wearer of daily, spherical, soft contact lenses (no bifocal or multifocal contact lenses, no extended wear or monovision) for at least 5 days/ week and at least 8 hours/day during the month prior to enrollment.
  7. The subject must be using digital devices (any combination of computers, tablets, smartphones, etc.) for at least 8 hours over the course of a typical day.
  8. The subject should own a wearable pair of spectacles and wear them the day of the baseline visit.
  9. The subject must have normal eyes with no evidence of abnormality or disease that in the opinion of the investigator would contraindicate contact lens wear.
  10. The subject must meet normal eligibility conditions of binocular vision tests.
  11. The subject may not have any double vision at near with their habitual contact lens correction.

Exclusion Criteria:

  1. Currently pregnant or lactating (subjects who become pregnant during the study will be discontinued).
  2. Any ocular or systemic allergies or diseases that may interfere with contact lens wear (at the investigator's discretion).
  3. Any systemic disease, autoimmune disease, or use of medication, which may interfere with contact lens wear (at the investigator's discretion).
  4. Use of any medication that causes side effects similar to side effects experienced when using digital devices, such as subjects reporting headaches associated with birth control pills (at the investigator's discretion).
  5. Any infectious disease (e.g. hepatitis, tuberculosis) or a contagious immunosuppressive disease.
  6. Any active ocular infection.
  7. Entropion, ectropion, extrusions, chalazia, recurrent styes, glaucoma, history of recurrent corneal erosions, aphakia, or moderate or above corneal distortion by keratometry.
  8. Any previous, or planned, ocular or intraocular surgery (e.g. radial keratotomy, PRK, LASIK, etc.).
  9. Clinically significant (grade 3 or 4) corneal edema, corneal vascularization, corneal staining, or any other abnormalities of the cornea which would contraindicate contact lens wear.
  10. Clinically significant (grade 3 or 4) tarsal abnormalities or bulbar injection which might interfere with contact lens wear.
  11. Any known hypersensitivity or allergic reaction to the study products.
  12. Participation in any contact lens or lens care product clinical trial within 7 days prior to study enrollment.
  13. History of binocular abnormality or strabismus.
  14. Employee of investigational clinic (e.g. Investigator, Coordinator, Technician).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Marketed Soft Contact Lens (Test)
Subjects will be randomized to wear each of three contact lens types (Marketed Soft Contact lens, AIR OPTIX® AQUA, or Biofinity®) for a 4-week period with each lens type.
Replacement schedule every 2 weeks
Other Names:
  • senofilcon A
Replacement schedule every 4 weeks
Other Names:
  • lotrafilcon B
Replacement schedule every 4 weeks
Other Names:
  • comfilcon A
Active Comparator: AIR OPTIX® AQUA
Subjects will be randomized to wear each of three contact lens types (Marketed Soft Contact lens, AIR OPTIX® AQUA, or Biofinity®) for a 4-week period with each lens type.
Replacement schedule every 2 weeks
Other Names:
  • senofilcon A
Replacement schedule every 4 weeks
Other Names:
  • lotrafilcon B
Replacement schedule every 4 weeks
Other Names:
  • comfilcon A
Active Comparator: Biofinity®
Subjects will be randomized to wear each of three contact lens types (Marketed Soft Contact lens, AIR OPTIX® AQUA, or Biofinity®) for a 4-week period with each lens type.
Replacement schedule every 2 weeks
Other Names:
  • senofilcon A
Replacement schedule every 4 weeks
Other Names:
  • lotrafilcon B
Replacement schedule every 4 weeks
Other Names:
  • comfilcon A

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Subjective Overall Comfort
Time Frame: 1-Day Follow-up
Subjective Overall Comfort was evaluated using the Contact Lens User Experience Comfort scores (CLUE). CLUE is a validated patient-reported outcomes (PRO) questionnaire to assess patient-experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using Item Response Theory (IRT) follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response. Scores range 0-120.
1-Day Follow-up
Subjective Overall Quality of Vision
Time Frame: 1-Day Follow-up
Subjective Overall quality of vision was evaluated using the Contact Lens User Experience Comfort scores (CLUE). CLUE is a validated patient-reported outcomes (PRO) questionnaire to assess patient-experience attributes of soft contact lenses (comfort, vision, handling, and packaging) in a contact-lens wearing population in the US, ages 18-65. Derived CLUE scores using Item Response Theory (IRT) follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response. Scores range 0-120.
1-Day Follow-up

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 2015

Primary Completion (Actual)

September 1, 2015

Study Completion (Actual)

September 1, 2015

Study Registration Dates

First Submitted

March 16, 2015

First Submitted That Met QC Criteria

March 16, 2015

First Posted (Estimate)

March 20, 2015

Study Record Updates

Last Update Posted (Actual)

June 19, 2018

Last Update Submitted That Met QC Criteria

June 18, 2018

Last Verified

March 1, 2017

More Information

Terms related to this study

Other Study ID Numbers

  • CR-5615

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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