Keratoconus
Conditions
Interventions
Sponsors
Department of Ophthalmology, Ichikawa General Hospital, Tokyo Dental College
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Those who reveal all of following factors; 1. Keratoconus or keartectasia pattern by corneal topography/tomography 2. Thinnest corneal thickness is 400 um or more. 3. Progression of keratoconus in recent 2 years by corneal topography/tomography and/or manifest refraction. Progression of keratectasia after corneal refractive surgery. 4. Age 40 year-old or more.
Exclusion criteria
Exclusion criteria: Those who reveal one or more of following factors; 1. Thinnest corneal thickness is less than 400 um. 2. Corneal stromal opacity 3. Those who implanted artificial cardiac pacemaker or similar devices. 4. Ocular diseases, such as scar, herpetic infection, or nystagmus. 5. Infectious corneal disorders with unkonwn causes. 6. General diseases that can affect the corneal wound healing 7. Nallow angle, pregnancy, breast feeding 8. Occupation that is not allowed performing corneal refractive surgeries 9. Age less than 14 year-old
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change of visual acuity, manifest refraction, keratometric value, and corneal topography | — |
Secondary
| Measure | Time frame |
|---|---|
| Decrease of best corrected visual acuity, decrease of endothelial cell counts, and frequency of complications | — |
Countries
Japan
Contacts
Public ContactJun Shimazaki
Ichikawa General Hospital, Tokyo Dental College Department of Ophthalmology
Outcome results
None listed