The effect of lens diameter on orthokeratology lens centratio
Not Applicable
Completed
- Conditions
- myopiaEye - Diseases / disorders of the eye
- Registration Number
- ACTRN12618000671268
- Lead Sponsor
- niversity of New South Wales
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- All
- Target Recruitment
- 17
Inclusion Criteria
1. Healthy individuals aged 18 to 40 years
2. Have short sightedness between -1.00D and -6.00D and less than -1.50D of corneal astigmatism
3. Have good ocular and general health
4. No contraindications for rigid contact lens wear and have not previously worn rigid contact lenses
5. Horizontal visible iris diameter 11 mm or greater
Exclusion Criteria
1. No strabismus or amblyopia
2. Systemic or ocular conditions that may affect tear quality or contact lens wear
3. Previous history of ocular surgery, trauma or chronic ocular disease
4. Not willing to comply with allocated treatment and follow-up schedules
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Anterior eye shape (corneal refractive power) changes measured using the Medmont E300 corneal topographer.[Measurements will be taken at baseline before any lens wear, then after 1, 7, and 14 nights (primary timepoint) of orthokeratology lens wear of both the standard and comparator designs]
- Secondary Outcome Measures
Name Time Method Central refraction will be measured using the Shin-Nippon NVision-K 5001 autorefractor.[Measurements will be taken at baseline before any lens wear, then after 1, 7, and 14 nights of orthokeratology lens wear of both the standard and comparator designs];Visual acuity will be measured using a computerised vision chart.[Measurements will be taken at baseline before any lens wear, then after 1, 7, and 14 nights of orthokeratology lens wear of both the standard and comparator designs]