keratoconus
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Increase in Steepest K-value more than 1.0D 2. Increase in manifest cylinder more than 1.0D 3. Increase in manifest spherical equivalent more than 1.0D One of the above conditions was found within 24 months and the thinnest corneal thickness is 400 um or more.
Exclusion criteria
Exclusion criteria: The corneal thickness is less than 400 um . Those who is implanted cardiac pacemaker, or other medical devices Non of the conditions below are observed; 1 Increase in Steepest K-value more than 1.0D 2 Increase in manifest cylinder more than 1.0D 3 Increase in manifest spherical equivalent more than 1.0D Those who have ocular disorders, such as infections, scars, ocular herpes, nystagmus etc. those who have general diseases that can affect the corneal wound healing Narrow angle Those who is in pregnancy or breast-feeding Occupations that are not allowed to undergo refractive surgeries Age less than 14 year-old
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| visual acuity, manifest visual acuity, corneal thickness, corneal higher order aberrations | — |
Countries
Japan
Contacts
Nagoya Eye Clinic Ethics committee