A Clinical Comparison of Three Soft Daily Disposable Contact Lenses

CooperVision

Status: Completed

Conditions: Myopia

Treatments: Device: nelfilcon A II 2; Device: somofilcon A; Device: omafilcon A ll 2

Study type: Interventional

Funder types: Industry

Identifiers

NCT02920983

EX-MTKG-74 (C16-596)

Details and patient eligibility

About

This study aims to compare the clinical performance of the somfilcon A, nelfilcon A II 2 and omafilcon A II 2 daily disposable contact lenses.

Full description

This will be a randomised, subject-masked, crossover, bilateral study, controlled by cross comparison. Fifty subjects will use each lens type for a week in random sequence. Follow-up visits for each lens will be performed after one week of wear. Lenses will be worn on a daily wear, daily disposable wear schedule.

Enrollment: 51 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Subjects will only be eligible for the study if:

  1. They are of legal age (18) and capacity to volunteer.
  2. They understand their rights as a research subject and are willing and able to sign a Statement of Informed Consent.
  3. They are willing and able to follow the protocol.
  4. They agree not to participate in other clinical research for the duration of this study.
  5. They have a contact lens spherical prescription between -1.00 to - 6.00D (Diopters) (inclusive)
  6. They have a spectacle cylindrical correction of -0.75D or less in each eye.
  7. At dispensing, 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.
  8. They currently use soft contact lenses or have done so in the previous six months.
  9. They are willing to comply with the wear schedule (at least five days per week and for at least eight hours per day).

Exclusion criteria

• Subjects will not be eligible to take part in the study if:

  1. They have an ocular disorder which would normally contra-indicate contact lens wear.
  2. They have a systemic disorder which would normally contra-indicate contact lens wear.
  3. They are using any topical medication such as eye drops or ointment.
  4. They have had cataract surgery.
  5. They have had corneal refractive surgery.
  6. They have any corneal distortion resulting from previous hard or rigid lens wear or have keratoconus.
  7. They are pregnant or breast-feeding.
  8. They have any ocular abnormality which would, in the opinion of the investigator, normally contraindicate contact lens wear.
  9. 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.
  10. They have taken part in any other contact lens or care solution clinical trial or research, within two weeks prior to starting this study.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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51 participants in 3 patient groups

somofilcon A

Active Comparator group

Description:

Subjects are randomized to wear somofilcon A for one week during the cross over study.

Treatment:

Device: somofilcon A

nelfilcon A II 2

Active Comparator group

Description:

Subjects are randomized to wear nelfilcon A II 2 for one week during the cross over study.

Treatment:

Device: nelfilcon A II 2

omafilcon A ll 2

Active Comparator group

Description:

Subjects are randomized to wear omafilcon A ll 2 for one week during the cross over study.

Treatment:

Device: omafilcon A ll 2