An evaluation of two contact lenses in experienced lens wearers to determine differences in lens comfort and lens clinical performance when lenses are each worn for two weeks
- Conditions
- Subjective comfort of contact lensesOcular surface response to contact lensesEye - Normal eye development and function
- Registration Number
- ACTRN12615000285550
- Lead Sponsor
- Brien Holden Vision Institute
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- All
- Target Recruitment
- 30
Be able to read and comprehend English and give informed consent as demonstrated by signing a record of informed consent.
Be at least 18 years old, male or female.
Be willing to comply with the wearing and clinical trial visit schedule as directed by the Investigator.
Have ocular health findings considered to be normal” and which would not prevent the participant from safely wearing contact lenses.
Be correctable to at least 6/12 (20/40) or better in each eye with contact lenses.
Be an experienced lens wearer.
Be able to insert and remove contact lenses
Any pre-existing ocular irritation, injury or condition (including infection or disease) of the cornea, conjunctiva or eyelids that would preclude contact lens fitting and safe wearing of contact lenses.
Any systemic disease that adversely affects ocular health e.g. diabetes, Graves disease, and auto immune diseases such as ankylosing spondylitis, multiple sclerosis, Sjögrens syndrome and systemic lupus erythematosus. Conditions such as systemic hypertension and arthritis do not automatically exclude prospective participants.
Use of or a need for concurrent category S3 and above ocular medication at enrolment. However, such ocular medications can be prescribed as per standard optometric care during the clinical trial.
Use of or a need for any systemic medication or topical medications which may alter normal ocular findings / are known to affect a participant’s ocular health / physiology or contact lens performance either in an adverse or beneficial manner at enrolment and/or during the clinical trial.
NB: Systemic antihistamines are allowed on an as needed basis”, provided they are not used prophylactically during the trial and at least 24 hours before the clinical trial product is used.
Eye surgery within 12 weeks immediately prior to enrolment for this trial.
Previous corneal refractive surgery.
Contraindications to contact lens wear.
Known allergy or intolerance to ingredients in any of the clinical trial products.
Currently enrolled in another clinical trial.
Pregnancy: (Formal testing of pregnancy is not required. A participant’s verbal report is sufficient).
The Investigator may, at his/her discretion, exclude anyone who they believe may not be able to fulfil the clinical trial requirements or it is believed to be in the participant’s best interests.
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Ocular comfort while wearing contact lenses, assessed by questionnaire specifically designed for this study[Stage 1: Fitting, Stage 1: 2-week visit, Stage 2: Fitting, Stage 2: 2-week visit];Ocular dryness while wearing contact lenses, assessed by questionnaire specifically designed for this study[Stage 1: Fitting, Stage 1: 2-week visit, Stage 2: Fitting, Stage 2: 2-week visit];Subjective vision while wearing contact lenses, assessed by questionnaire specifically designed for this study[Stage 1: Fitting, Stage 1: 2-week visit, Stage 2: Fitting, Stage 2: 2-week visit]
- Secondary Outcome Measures
Name Time Method Corneal staining while wearing contact lenses, assessed with slit-lamp biomicroscopy and graded using the Brien Holden Vision Institute grading scale[Baseline, Stage 1: Fitting, Stage 1: 2-week visit, Stage 2: Fitting, Stage 2: 2-week visit];Bulbar hyperaemia while wearing contact lenses, assessed with slit-lamp biomicroscopy and graded using the Brien Holden Vision Institute grading scale[Baseline, Stage 1: Fitting, Stage 1: 2-week visit, Stage 2: Fitting, Stage 2: 2-week visit];Limbal hyperaemia while wearing contact lenses, assessed with slit-lamp biomicroscopy and graded using the Brien Holden Vision Institute grading scale[Baseline, Stage 1: Fitting, Stage 1: 2-week visit, Stage 2: Fitting, Stage 2: 2-week visit]