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OpenTrials
Completed

NCT Number: NCT04201639

Evaluating the Performance of Precision1 Daily Disposable Contact Lens in a Group of Heavy Digital Device Users

The purpose of this study is to evaluate the performance of Precision1 DD CLs with regard to subjective symptoms (dryness, comfort, vision), lens fit and time to haze in CL wearers who identify themselves as heavy digital devices users (at least 6 hours of digital device use per day).

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Key information

Conditions

Myopia Eye Diseases Refractive Errors

Age range

18 year–40 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Centre for Ocular Research & Education

Waterloo, Ontario, N2L 3G1, Canada

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Is between 18 and 40 years of age (inclusive) 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 a heavy digital device user (at least 6 hours on a typical day using any combination of digital devices such as PC, laptop, smartphone, or tablet);
  • Is a habitual wearer of daily, spherical, soft contact lenses (no bifocal or multifocal contact lenses, no extended wear or monovision, not a current wearer of Precision1 lenses) for at least 5 days/week and at least 10 hours/day during the month prior to enrollment;
  • Has a vertex corrected spherical equivalent distance refraction that ranges between -0.50D to -6.00D in each eye;
  • Has a vertex corrected refractive cylinder of no more than -1.00D cylindrical correction in each eye after vertexing to the corneal plane;
  • Demonstrates an acceptable fit and achieves best corrected visual acuity of at least 0.20 log MAR in each eye with Precision1 contact lenses;
  • Is willing to wear Precision1 CLs at least 5 days per week and 10 hours per day throughout the study;

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 or planning a pregnancy at the time of enrolment;
  • Is aphakic;
  • Has undergone refractive error surgery;
  • For the purposes of this study, active ocular disease is defined as infection or inflammation which requires therapeutic treatment. Mild (i.e. not considered clinically relevant) lid abnormalities (blepharitis, meibomian gland dysfunction, papillae), corneal and conjunctival staining and dry eye are not considered active ocular disease. Neovascularization and corneal scars are the result of previous hypoxia, infection or inflammation and are therefore not active.

Treatment and study plan

Verofilcon A contact lenses

Device

Daily disposable silicone hydrogel contact lenses indicated for the optical correction of refractive ametropia (myopia and hyperopia)

Other names: Precision1™

Primary outcomes

  1. Subjective Comfort After Contact Lens Insertion

    Time frame: Dispense Visit (Day 0)

    Participants rate their comfort after insertion on a scale from 0 (worst) to 100 (best).

  2. Subjective Dryness After Contact Lens Insertion

    Time frame: Dispense Visit (Day 0)

    Participants rate their dryness after insertion on a scale from 0 (worst) to 100 (best).

  3. Subjective Rating of Clarity of Vision After Contact Lens Insertion

    Time frame: Dispense Visit (Day 0)

    Participants rate their clarity of vision after insertion on a scale from 0 (worst) to 100 (best).

  4. Subjective Comfort After Contact Lens Insertion

    Time frame: Day 1

    Participants rate their comfort after insertion on a scale from 0 (worst) to 100 (best).

  5. Subjective Dryness After Contact Lens Insertion

    Time frame: Day 1

    Participants rate their dryness after insertion on a scale from 0 (worst) to 100 (best).

  6. Subjective Rating of Clarity of Vision After Contact Lens Insertion

    Time frame: Day 1

    Participants rate their clarity of vision after insertion on a scale from 0 (worst) to 100 (best).

  7. Subjective Comfort After Contact Lens Insertion

    Time frame: Day 7

    Participants rate their comfort after insertion on a scale from 0 (worst) to 100 (best).

  8. Subjective Dryness After Contact Lens Insertion

    Time frame: Day 7

    Participants rate their dryness after insertion on a scale from 0 (worst) to 100 (best).

  9. Subjective Rating of Clarity of Vision After Contact Lens Insertion

    Time frame: Day 7

    Participants rate their clarity of vision after insertion on a scale from 0 (worst) to 100 (best).

  10. Subjective Comfort After Contact Lens Insertion

    Time frame: Day 10

    Participants rate their comfort after insertion on a scale from 0 (worst) to 100 (best).

  11. Subjective Dryness After Contact Lens Insertion

    Time frame: Day 10

    Participants rate their dryness after insertion on a scale from 0 (worst) to 100 (best).

  12. Subjective Rating of Clarity of Vision After Contact Lens Insertion

    Time frame: Day 10

    Participants rate their clarity of vision after insertion on a scale from 0 (worst) to 100 (best).

  13. Subjective Comfort After Contact Lens Insertion

    Time frame: Followup visit (occurring at a single visit any day from Day 12-16)

    Participants rate their comfort after insertion on a scale from 0 (worst) to 100 (best).

  14. Subjective Dryness After Contact Lens Insertion

    Time frame: Followup visit (occurring at a single visit any day from Day 12-16)

    Participants rate their comfort after insertion on a scale from 0 (worst) to 100 (best).

  15. Subjective Rating of Clarity of Vision After Contact Lens Insertion

    Time frame: Followup visit (occurring at a single visit any day from Day 12-16)

    Participants rate their comfort after insertion on a scale from 0 (worst) to 100 (best).

  16. Subjective Comfort With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Day 1

    Participants rate their comfort after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  17. Subjective Dryness With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Day 1

    Participants rate their dryness after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  18. Subjective Rating of Vision Clarity With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Day 1

    Participants rate their vision clarity after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  19. Subjective Comfort With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Day 7

    Participants rate their comfort after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  20. Subjective Dryness With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Day 7

    Participants rate their dryness after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  21. Subjective Rating of Vision Clarity With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Day 7

    Participants rate their vision clarity after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  22. Subjective Comfort With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Day 10

    Participants rate their comfort after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  23. Subjective Dryness With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Day 10

    Participants rate their dryness after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  24. Subjective Rating of Vision Clarity With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Day 10

    Participants rate their vision clarity after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  25. Subjective Comfort With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Followup visit (occurring at a single visit any day from Day 12-16)

    Participants rate their comfort after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  26. Subjective Dryness With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Followup visit (occurring at a single visit any day from Day 12-16)

    Participants rate their dryness after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  27. Subjective Rating of Vision Clarity With Contact Lens Wear After 6 Hours of Digital Device Use

    Time frame: Followup visit (occurring at a single visit any day from Day 12-16)

    Participants rate their vision clarity after 6 hours of digital device use on a scale from 0 (worst) to 100 (best).

  28. Subjective Comfort at End of Day With Contact Lens Wear

    Time frame: Day 1

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

  29. Subjective Dryness at End of Day With Contact Lens Wear

    Time frame: Day 1

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

  30. Subjective Rating of Vision Clarity at End of Day With Contact Lens Wear

    Time frame: Day 1

    Participants rate their end of day vision clarity on a scale from 0 (worst) to 100 (best).

  31. Subjective Comfort at End of Day With Contact Lens Wear

    Time frame: Day 7

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

  32. Subjective Dryness at End of Day With Contact Lens Wear

    Time frame: Day 7

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

  33. Subjective Rating of Vision Clarity at End of Day With Contact Lens Wear

    Time frame: Day 7

    Participants rate their end of day rating of vision clarity on a scale from 0 (worst) to 100 (best).

  34. Subjective Comfort at End of Day With Contact Lens Wear

    Time frame: Day 10

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

  35. Subjective Dryness at End of Day With Contact Lens Wear

    Time frame: Day 10

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

  36. Subjective Rating of Vision Clarity at End of Day With Contact Lens Wear

    Time frame: Day 10

    Participants rate their end of day vision clarity on a scale from 0 (worst) to 100 (best).

  37. Subjective Comfort at End of Day With Contact Lens Wear

    Time frame: Followup visit (occurring at a single visit any day from Day 12-16)

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

  38. Subjective Dryness at End of Day With Contact Lens Wear

    Time frame: Followup visit (occurring at a single visit any day from Day 12-16)

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

  39. Subjective Rating of Vision Clarity at End of Day With Contact Lens Wear

    Time frame: Followup visit (occurring at a single visit any day from Day 12-16)

    Participants rate their end of day rating of vision clarity on a scale from 0 (worst) to 100 (best).

Sponsors and collaborators

Lead sponsor

University of Waterloo

Other

Collaborators

  • Alcon Research

Registry information

Acronym: PUG

Important dates

Study start
2019
Primary completion
2021
Study completion
2021
First posted
Dec 17, 2019
Registry last updated
Jan 26, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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