Myopia control with progressive spectacle lenses trial
- Conditions
- Juvenile onset myopiaEye - Diseases / disorders of the eye
- Registration Number
- ACTRN12611000582954
- Lead Sponsor
- Carl Zeiss Vision
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- All
- Target Recruitment
- 165
1) Spherical equivalent refractive error (SER) of –1.00 to -4.50 D
2) Astigmatism of not more than -1.50 D.
3) Anisometropia of not more than -1.50 D in spherical or cylindrical error.
4) Have best corrected visual acuity of at least 6/9 (20/30) in each eye.
5) Normal ocular health other than myopia.
6) No prior use of bifocal or progressive lenses in the last 12 months.
7) No RPG contact lens experience and must be willing not to wear contact lenses.
8) In satisfactory health.
9) Willing and able to tolerate cycloplegia (no previous adverse reaction to cycloplegics).
10) Informed parental consent.
1) Any systemic condition which might affect refractive development or systemic diseases which may affect vision or refractive error.
2) Previous use of contact lens/PALs or other treatment for myopia within the last 12 months.
3) Defective binocular function.
4) Amblyopia and or manifested squint.
5) Vestibular disorders or motor imbalance.
6) Any other conditions precluding adherence to the Protocol.
7) Have best corrected visual acuity worse than 6/9 (20/30) in each eye.
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Progression in sphere equivalent refractive error from cycloplegic autorefraction using the Grand Seiko WR-5100K open field auto-refractor.[At 6, 12, 18 & 24 months.]
- Secondary Outcome Measures
Name Time Method Progression in axial length of the eyeball. This will be measured using a Sonomed A Scan or Tomey A Scan ultrasound measuring device.[At 6, 12, 18 & 24 months.]