Myopia
Conditions
Keywords
Orthokeratology
Brief summary
Orthokeratology has the benefit for slowing down myopia progression and enabling unaided vision during the day. To investigate proposed possible changes of conventional and multifocal orthokeratology in the cornea and choroid this study will image both structures with high resolution optical coherence tomographs over a six month period. Findings will help to plan larger trials over a longer period of time in adults and teenagers.
Interventions
DEVICEOrthokeratology lens
Sponsors
Medical University of Vienna
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Men and women aged over 18 years * Myopia defined as between -1D and -6 D with an increase of 0.5D within the last 18months prior to inclusion * Prospect orthokeratology contact lens wearers * Normal findings in the slit lamp examination, no corneal pathologies
Exclusion criteria
* Participation in a clinical trial in the previous 3 weeks * Presence of any abnormalities (such as refractive surgery) preventing reliable measurements as judged by the investigator * Current contact lens wearers * Pregnancy, planned pregnancy or lactating
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Quantitative changes in the corneal thickness | 1 year |
| Qualitative changes in the corneal structure | 1 year |
Secondary
| Measure | Time frame |
|---|---|
| Quantitative changes in the choroidal thickness | 1 year |
| Qualitative changes in the choroidal structure | 1 year |
Countries
Austria
Contacts
Primary ContactGerhard Garhöfer, Assoc. Prof. PD Dr
Outcome results
None listed